When using Twitter, you've probably already seen a tweet or two containing a word with the symbol ("#") attached to it. Twitter calls this a "hashtag." At least one of them can usually be found among the trending topics on Twitter.
Hashtags are a simple way to identify and connect tweets about a specific topic. They make it easier for users to find additional relevant tweets on a particular subject.
You can create a hashtag simply by appending the hash symbol to a word, like this: #pizza.
Twitter users often search hashtags for content from people they aren't following. Using hashtags can be a great way to extend your reach on Twitter and connect with other users with the same interests. See the hashtag search results example below for #pizza.
When using hashtags you should only use hashtags if your tweet is actually relevant to the tag's associated topic. For example: if you own a pizza restaurant, why not tweet out your specials #specialspizza.
Using OnFast.com, try using a hashtag in your next Twitter post then search twitter for your hashtag and find other like posts.
Posted via OnFast - http://www.OnFast.com