Strong opinions on tea are brewing at RateTea.net
RateTea.net is more review-centric than Steepster. If I had to compare it to a major social site, I'd go with Yelp: anyone can sign up to rate and review, or you can stop by as a guest to take advantage of other people's exper-tea-se (sorry!). There are no fancy profile pages to fill out, just a place to write your review, and a scoring scale to grade teas on aroma, flavor and value. In the future, this will allow RateTea to recommend new teas for you based on the ones you've already rated. I'm more of a coffee guy myself, but it sounds like a good idea to me.