Twitalyzer is Twitter's most popular measurement solution for business and personal users, focusing on influence, impact, engagement, generosity, and nearly 30 more measures of success in Twitter.
Twitter Karma is a tool for managing your Twitter friends and followers, providing ways of sorting and filtering them as well as simplifying the process of following people back.
How it works? 1. Add your tweets to Timely. 2. We published them when they'll have the highest impact. 3. You get more retweets, mentions and followers!