Sports Illustrated has built a unique Facebook application for March Madness, where Bracketology meets Social Networking in SI’s Bracket Challenge.

The application allows you to build a bracket with your friends to see whose picks reign supreme, as well as the latest news and updates from every team in the NCAA tourney.

To date, over 22,000 people have added the Facebook application. With “Selection Sunday” only 5 days away, that number is expected to rise exponentially.

Other notable features include a “Friend Predictor” that allows you to see which friends have added the app, while offering the option of who you think will do best; “Citizen Sports Fan Breakdown” shows which teams in the NCAA have the most fans on Facebook, and the overall ability to talk smack in over 40 active discussion boards. Leave your poor judgment at the door, kiddos!

Desperate for starting pitching after the loss of Mike Hampton and the ineffectiveness of Mark Redman, Kyle Davies and Lance Cormier, the Atlanta Braves have signed actor Charlie Sheen to a major league contract.

The star of Hot Shots! and Scary Movie 3, Sheen is no stranger to the game. As a boy, he played in Little League. As an adult, he participated in a Celebrity All-Star Game at Dodger Stadium in 1986. And in 1996, he took batting practice with the Seattle Mariners before a game. However, it was his work in three baseball-based films - Major League, Major League II, and Eight Men Out - that caught the eye of the Atlanta Braves. Read more