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TwitterKeys is a browser bookmarket that pulls up expressive characters for easy copy & paste of all those crazy unicode symbols that people love to include in their emails and blog posts. Both Mac and Windows give access to these characters in their operating systems (Character Pallette on Mac, Character Map on Windows), but TwitterKeys is an even easier way to find them.
The guys at The Next Web created TwitterKeys as a bookmarklet specifically so they could find characters fast for quick Twitter messages. If you want to add it, just drag this link to TwitterKeys up to your bookmark bar.
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