Working with PeopleBrowsr, Ad.ly introduced analytics into their platform for both advertisers and Twitterers. I ran some stats on my account and have shared the results below.

What I find most interesting is their offer of a premium version. For $9.99 per month (or $99.99 a year), you can keep up-to-date with Twitter metrics like Sentiment Analysis, Individual Follower Engagement, Detailed Location Reports and a larger list of Your Most Influential Followers.

Other reputation management services offer this type of analytics capability for much more, so if the data and reports are compelling, that price is a steal.