Talking about running, I registered for the nike 10k human race:

the Human Race 2009 is a virtual event - no need to get to a venue - you can run your 10K any where, any time on race day

I’d just started running last year and didn’t learn about this event till afterwards. It’s a self-participation event. Registering on the nike site means the run is tracked and recorded, which I do anyway with my Nike+. I’ve been stuck at 5k for a few months, this will be perfect. Plus this will bring my total race participation to 6 this year, I’m really pleased.