What the Hashtag?! (wthashtag) is a user generated encyclopedia for hashtags on Twitter. On the site you can discover the definition and background of hashtags and find a variety of tools for users to engage and monitor hashtag conversations.

With What the Hashtag?!, you can:

• Review stats and usage charting for the past seven days – Users can quickly view the number of tweets which have included the hashtag, top contributors and other information such as tweets per day, percent retweets and number of contributors
• Pull a transcript – Missed a chat or want to view the back channel conversation of a recent conference? Users can go back and read old tweets by pulling a transcript of the hashtag
• View real-time stream of hashtags – Users can watch the real-time stream of tweets of their favorite hashtag which includes a number of filters to reduce potential noise from retweets, links and replies.

What the Hashtag?! is a growing resource for all of your hashtag use and research.

Website:  Wthashtag.com
On Twitter:  @wthashtag