Depending on the root specificity of your question, the word on the street is that Sherdog is pretty good, or perhaps the infamous S&P forum...
He started a thread saying it would be cool to get UFC fighters together for a televised football game.
Techniques: http://dcplusplus.sourceforge.net/ http://bjj.org/ www.grapplearts.com http://www.lockflow.com/ http://www.mmalibrary.com/techniques.asp Fitness for mma or interesting in a mma perspective: www.testosterone.net www.crossfit.com www.warriorforce.com http://www.maxcondition.com/ www.dragondoor.com www.grapplersgym.com And dont forget this forum and the stickies. Well there you have some different sites to check, hope you find something that help you.