The Charles river is probably the best place to learn rowing outside of Britain. I was fortunate to row in the Dudley House men's eight for several years and entered the World Indoor Rowing Championships twice (and didn't even come close to winning).
I've been a mid-distance runner since middle school. I don't run particularly far or fast, but it's a great way to clear my head. Sometimes you can find me at local races.
I picked up the game as a senior in high school and played a little club in college. Although I don't play as often as I'd like, I always keep two discs in the trunk of my car. Now you know who to ask.
The Internet never forgets.
I'm a fan of open source software. I suppose it's related to my belief in reproducibility in science. Some of my projects are hosted here.
I periodically write about problems that I find engaging in a blog. It's not updated often, but more readers encourages more writing on my part. Drop by and add a comment.
Over the years, I've had the pleasure of knowing some fine folks, some of whom have their own corner of the web. (To those of you who aren't listed here: send me a pointer to your site! I'd love to add a link to your virtual home.)