Google just rolled out a search autocomplete feature for Gmail; If you turn on “Search Autocomplete” from the Labs tab under Gmail Settings, you’ll get suggestions in your search box while you are typing like you do in Google’s search box.

The search feature is pretty easy to use and definitely helpful. If you are looking for a contact, you can just type a couple letters of the person’s first or last name and the feature will provide a list that matches the search query. Google has added some advanced features like the ability to search in specific places (e.g. in chats or sent items), or search for messages with attachments by certain type (e.g. docs or photos). But finding that email from six months ago among the tens of thousands in your archive just got easier.

Have you ever sent an email, and just as it was going on its merry way, you realize you misspelled something or you sent it to the wrong person. This happens to me a lot on Gmail because sending an email is not always instant. And you have more chances to experience email regret as you are waiting for one to send.

Well, now you can take advantage of that delay to “undo” the message. (Not to be confused with Gmail Goggles, which is geared more at preventing drunken emails from ever being sent out in the first place). Just enable the feature in Gmail Labs in Settings (Scroll down, it is not at the top for some reason). It only works during that 5 second delay between the time you hit send and the time that Gmail actually sends the message.

What I like about this option is that it turns a bug into a feature. Gmail is really too slow, but now you can occasionally use that to your advantage.

It’s bad enough for Google that businesses and consumers across the globe are being left without web access to Gmail for hours, but to add insult to injury someone hacked the created a Google Groups page on Gmail (link NSFW) at the worst possible time, adding images that leave nothing to the imagination as well links to adult content elsewhere on the net on top of the page.

Update: per comments, this is not an official Google group but a user-generated one most likely deliberately set up now to take advantage of the fact Google has other things on its mind right now than checking up and moderating new groups on the subject of Gmail. Title edited.

Update 2: someone at the Googleplex just did and deleted the group, which was up for at least 25 minutes.

Update 3: weird, it dissappeared for a while but now you’re able to access it anyway after a warning message.

Thousands of Twitter messages carrying the words “gmail” or “gfail” will teach you that Google’s free web-based e-mail platform is currently down around the world. A Google spokesperson told Pocket Lint that their engineers are working on it but have no clue why the errors are turning up.

Meanwhile, a Google representative posted this on a its help pages:

We’re aware of a problem with Gmail affecting a small subset of users. The affected users are unable to access Gmail. We will provide an update by February 24, 2009 6:30 AM PST detailing when we expect to resolve the problem. Please note that this resolution time is an estimate and may change.

Update: Gmail is supposed to be coming back now, at least for some.

Update 2: there’s a status box on the Gmail Help homepage that says the outage started at 1:30 AM PST, which means the problems have been occurring for nearly 2 hours and a half at the time of this update.

Xoopit, a social networking email enhancement that allows users to locate files, images and videos in their inbox, has launched a new feature that lets Gmail users immediately see and set Facebook status messages and view profile photos of their Facebook friends while reading emails off a Gmail account.

Users can also quickly see other information such as birthdays and mobile phone numbers. After downloading the feature, a user can easily update their own status directly from a Gmail account using Facebook Connect. Xoopit’s new feature is pretty neat and gives users the ability to bounce between Facebook and Gmail accounts seamlessly. And Facebook’s status message feature is one that most users check most frequently, so its particularly useful to the average Facebook user.

Google appears to have a new obsession with knowing and broadcasting your current location. A week after announcing Latitude, which shares your location with friends on Google Maps and threatens to render several startups irrelevant, an engineer has developed location-aware email signatures for Gmail.

After turning on the “Location in Signature” feature in Gmail Labs, you’ll see a new checkbox in the Signature area of your settings that says “Append your location to the signature.” Once the box is checked, all of your subsequent emails will end with something like “Sent from: San Francisco, California”.

Until today, one of the biggest drawbacks of Gmail is that you could not go through your emails when you were offline. Today, that changes. Gmail is finally going offline. Google is rolling out a Google Gears version of Gmail that will be available to users starting today in Gmail Labs. (If you don’t see it, keep checking, the rollout to all users should be complete by the end of the week).

After installing the Google Gears plug-in to your browser, Gmail detects when you are offline. It caches your e-mail so that you can read it, respond to it, search it, star it, or label it. When you are connected to the Internet again, it sends all the messages. You can even open attachments. This is exactly the way Gmail already works on mobile phones such as the Android and those that support Gears. In fact, according to Gmail product manager Todd Jackson, who briefed me earlier today:

I just received a Google Talk chat message from Orli Yakuel that contained an embedded YouTube Video. Turns out Google is testing a feature that automatically turns direct links to YouTube videos copied into the instant messaging application (seems to work only from within Gmail, not the desktop client) into embedded clips.

Update: it also works with direct links to videos hosted on Google Video (which they’re about to shut down).

To make it work, simply paste the direct link. e.g. the URL for the video of Obama’s inaugural address into the conversation screen. The instant messaging client will automatically convert the video and show a preview image. When you play it, the video will open on top of the chat screen in Gmail.

Google launched Gmail only four years ago, and it is now the fourth most popular e-mail service on the Web after Yahoo Mail, AOL Mail, and Windows Live Hotmail. In 2008, it saw some serious growth in the U.S. Google doesn’t break out the number of Gmail users, but comScore estimates unique monthly visitors. According to the latest stats, the number of people visiting Gmail grew 43 percent last year to 29.6 million. In contrast, the much more massive Yahoo Mail grew 11 percent to 91.9 million uniques. AOL Mail finished in second place for the year with 46.6 million uniques (plus another 7.2 million visitors to AIM Mail), while Hotmail actually declined 5 percent to 43.5 million.

How can Gmail keep growing at such a fast rate, when the other email services seem to be stagnating? Maybe it’s because Gmail is evolving at a faster rate.

It’s 2009. Storage is so cheap that Email providers like Yahoo are literally giving you as much space as you want. Yet we still have to deal with archaic policies that allow these Email providers to delete everything in our inboxes if, for whatever reason, we forget to login for a few months.

The time limits vary: Yahoo cuts you off at 4 months, Windows Live Hotmail at 60 days, and Gmail after a more lenient 9 months of inactivity (you can see a more comprehensive listing here). Most of them have some kind of grace period where your account enters a deactivated ‘hibernation’ state, but still retains its data. Some of them have these policies in print but rarely actually delete your account. But for others, once you cross the threshold, every Email message, photo, and file attachment is gone for good.

At the beginning of each year I traditionally publish a list of my favorite startups and products. This is the fourth year I’ve done this – previous lists: 2006, 2007, 2008. You guys get to pick the winners of the Crunchies – this list is all mine.

This is a list of the products I tend to use daily. Some are for work (Wordpress, Delicious, Zoho, etc.), some are for fun (MySpace Music, Hulu, etc), and some are useful for both (Digg, Skype, YouTube, etc.). But I use most of them every day, or nearly every day, and I would not be as productive or happy without all of them.

The list changes a bit from year to year, and is also getting longer (see chart). Just three products have been favorites all four years: TechMeme, Skype, Wordpress. TechMeme continues to be the news aggregator I check multiple times per day to keep up on tech news. Skype is the instant messaging and VoIP platform that I use most often, and Wordpress software powers all of our blogs.

I’ve added nine new products, including one gadget (which I’ve left off in the past): Animoto, Friendfeed, Hulu, iPhone 3G, MySpace Music, Pandora (which was on in previous years) Docstoc/Scribd and Yammer.

Can you name Google’s top ten products? If you look at how Quantcast ranks Google’s subdomains, you can get a sense of which Google products are the most popular, since they each have their own subdomain. Google’s main search engine tops the list with an estimated 136.6 million unique visitors in the U.S. Then comes Google Maps (36 million), Image Search (31.7 million), and Gmail (10.5 million). Google Docs, Sites, and Knol are still too small to make the top-ten, but are all showing decent growth.

YouTube and Orkut are not included below because they are on their own domains, but YouTube would be second with 70 million unique visitors. Orkut is not popular in the U.S., so it would not be a factor in this particular list. And I took out sorry.google.com, the domain Google uses to try to catch bots and spyware. It would have ranked No. 8.

Only a few days after the launch of its new task manager, Gmail has introduced a new feature allowing users to send free SMS messages through its integrated Chat. To activate the feature, visit the Gmail Labs page and scroll down until you see the appropriate listing (you may also want to activate a few of the other nifty features while you’re at it).

To send a message, just type a phone number into the search box at the top of the chat window on the left side of the Gmail interface, and hit ‘Send SMS’. Numbers can be associated with contact names so you don’t have to keep manually entering them. Recipients of these messages can respond by simply hitting ‘reply’ on their cell phones to send their own SMS message (Gmail ties a unique phone number with each of your contacts).

According to the Gmail blog post, the site is currently testing out the service with US phones only for now (messages can be sent from abroad, they just need to be directed at a US phone).

Someone at Google finally realized how helpful it would be to add a to-do list to Gmail. It is called “Tasks” and is now available in Gmail Labs (click on the beaker icon next to “Settings” on the upper right hand corner of Gmail). When you enable Tasks, it appears as a link in the left-hand column under Contacts. Click on the link and a box pops up in the lower right-hand corner like it does with Gtalk. You can add tasks, reorder them, cross out completed tasks, switch to a new list, or pop out the box to keep on your desktop.

It’s a simple feature, but really useful for people who find that they keep Gmail open all the time. In general, I’m not a big user of to-do lists. Not because I don’t need them (I do), but because they require that I open a separate application or go to a dedicated Website like Remember The Milk. In effect, I already use Gmail as my to-do list. When I need to remind myself of more than five tasks that I need to do, I simply email myself the list. This is not an ideal solution, especially if I’m looking for the list a few days after I send it.

Apparently a lucky few Gmail users had a “Themes” tab pop up under settings. No longer do you have to suffer through the boring-if-functional standard Gmail interface for the 16 hours a day that you keep the page loaded. Try “Ninja” instead.

Google’s release of its Gmail Video service is noteworthy for several reasons. It is integrated into the Gmail console, adding voice and video services to the realtime console that is being built out around XMPP. It is remarkably easy to use; Dan Farber just called to test the service and I popped the window out and continued chatting with him while returning to this post. Several alerts on Yammer and Friendfeed’s realtime IM competed briefly in other chat windows. Oh, and Google just added about a quarter of its version of Silverlight to my MacBook Air. Call it Silverlite.

Last week Google announced a new set of gadgets for Gmail Labs that offer integration with Docs and Google Calendar. But perhaps most exciting (and under-emphasized at the time) was the introduction of support for third party gadgets, giving users the chance to add features to Gmail beyond what Google offers.

One of the first developers to take advantage of the new feature is Remember The Milk (RTM), a popular To-Do list application that we reviewed back in 2005. The service allows users to access and input to-do items from a variety of locations, and offers its core service for free (you can pay $25 a year for support on extra mobile devices). While RTM offered support for Gmail before now, it was reliant on a Firefox extension, raising the barrier to entry and cutting out a large portion of the browser market.

Tens of millions of people rely on Gmail, and some even pay for the “premier” edition through Google Apps for Enterprises (which boasts one million businesses as customers). So when some enterprise customers had to suffer through a Gmail outage two weeks ago that lasted 30 hours, it made some headlines. As did the bigger Gmail outage last August that affected all users for about two hours.

In a belated blog post that responds to the criticism generated by the most recent outage, Matthew Glotzbach, the product management director of Google Enterprise, says that only “0.003% of Google Apps Premier Edition users” were affected. He also claims that Gmail is available 99.9 percent of the time, measured by “average uptime per user based on server-side error rates.” That amounts to 10 to 15 minutes of downtime per month, including the August outage.

Google finally got around to fixing Gmail on the Blackberry and J2ME phones like the Nokia N95 or Sony Ericsson W910i. Now you can compose emails while offline. When you hit “send, they sit in the outbox until your handset finds a network again.

The offline capability will come in really handy on the subway. Now, my BlackBerry can do what Gmail on my iPhone and Android handsets can do. Just in time for the Blackberry Storm, too.