Here are a couple of other quotes/podcasts/articles:
http://www.walkjogrun.net/blog/index.cfm/2012/2/10/Run-a-Marathon-On-Every-ContinentTalkJogRun-Episode-16
http://www.vocus.com/invocus/media-blog/tweeting-amidst-the-masses-part-i/
http://www.spryliving.com/articles/ramp-up-your-fitness/
http://rev3tri.com/qa-with-pro-triathlete-kelly-williamson/