RealGM.com is a website create in 2000. The site was originally a basketball site but has since included NHL, MLB, and NFL. Marcus Allen is a notable contributor to the site's NFL forum. The website is close to the top 5000 most visited sites according to Alexa, as of May 24, 2007. The site is noted for its trade checker, a system developed to analyze hypothetical NBA trades according to the collective bargaining agreement. A professional version of the Trade Checker has been licensed to several NBA teams.