You may have come across Twitter sites that grade Twitter profiles for their value, such as TwitterValue, which gives users the value of their account based on followers, RTs and more.

Grader.com provides a rank and grade for twits at twitter.grader.com. The site uses an algorithm that ranks twits and provides them with a grade. The algorithm is based on various factors like followers, updates, recency of updates and more. You can also view ranks by location.

NewsCloud, which developed the Minnesota Daily Facebook application and HotDish, is offering the source code to other college papers interested in customizing it and managing it themselves. (Disclaimer: I was editor of the Daily when we launched the application.)

The application allows users to post links to articles that they find interesting and rewards them for doing so. Users also get points for engaging the content in other ways, such as sharing it with their friends, commenting on it, etc. The user is rewarded with points that add up to prizes that the news organization offers.