What is hashtag? - Definition from WhatIs.com
Part of the Personal computing glossary:

What is a hashtag?

A hashtag is a tag used to categorize posts on Twitter (tweets) according to topics. To add a hashtag to a tweet, you just preface the relevant term with the hash symbol (#). That will allow people who follow that topic to find your tweet and perhaps follow you as well. 

 

Learn More About IT:
> SearchEngineJournal provides The Ultimate Guide to Hashtags.

This was last updated in August 2009
Posted by: Margaret Rouse

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