Are you using Twitter to gain more visitors to your site? If so, do you know how effective your efforts are in achieving this goal? Twitter metrics are numbers related to Twitter that can help a person evaluate their standing in the social media community, or determine the effectiveness of campaigns on Twitter. There are a number of different tools for getting data regarding your twitter activity.
Twitterholic is a site which shows the growth of a Twitter account over time in relation to the number of new followers and follows. It also compares Twitter account follows based on region by ranking them.