Runnersworld.com
This website has awesome articles about training for a race. Here is a direct link to the training page: http://www.runnersworld.com/channel/0,,s6-238-0-0-0,00.html
http://www.asicsamerica.com/
AsicsAmerica offers daily tips for running and for being active.
Nike Running
Nike Running has everything from running blogs to apparal for the race.
http://nikerunning.nike.com/nikeos/p/nikeplus/en_US/
http://nikerunning.nike.com/nikeos/p/nikeplus/en_US/
Fellow Twitter Members
There are many runners online who often tweet about running. Follow iRunnerBlog, iRunnerGirl, and RunningBecause. Every other Sunday, you can join runners all over the world by following #runchat. It is a great way to connect and get advice from some veteran runners! RunnersWorld is a great name to follow.