For me theres limited added benefit to the other sites out there (fetch, RW, marathon talk). These are just my opinions from a first glance.
It looks like you're trying to be a jack of all trades and master of none. There is nothing of interest or something that grabs my attention. It reminds me of about.com in the appearance, ads and content.
- I dont know if this is just my computer/ipad but there are way too many ads and they're really annoying.
- Theres not enough content on there. One or two articles isnt enough to keep me interested
- Only 1 training plan highlighted for beginners. What you need are more plans and focusing on the established runner rather than flooding for newbies
What makes you want to build a running site thats the same as everyone else? why not try finding a USP and building something meaningful for the community.
Sorry if i'm being too harsh