I recently launched a website for rating and reviewing teas. It's meant for anyone who drinks tea, not just connoisseurs or experts:
Hopefully you will enjoy my website! The website is very young and growing rapidly both in features and content. I've been able to be very responsive to requests so far. If a brand of tea or a particular tea is not listed and you want to rate it, there's a suggestion form and I will add it ASAP. I am listing everything from supermarket brands of teabag tea up through high-end loose teas, single-estate and rare teas. I hope to soon have local listings for tea houses and tea shops too.
My site also has information about different styles of tea and tea-producing regions. I am progressively adding more information as I add more teas, and as I do my own reading and research about tea.
:-) Enjoy! And drink lots of tea! :-)