definitely check out the new lousiwan, south of the city. you can take the 170 or the 212 bus.

what general area are you in? There's a small shop in Bei Chen a couple minutes walk from Metro that I go to every once in a while. Not sure the road name, but it's around the corner from the Silver Spoon Cafe on that main road. EDIT: to hopefully make that more clear, it's on the same road as Metro, on the other side of Beijing Da Dao. Walking from Metro it's a ways up on the left, just before the walking street that has the Silver Spoon and the Prague Cafe. (sorry my directions are so confusing!)

Near the Wen Hua Xiang area, there's a shop on a small road that runs parallel to Jian She Lu as it goes down the hill toward Xiao Ximen - if you're walking on Wen Lin Jie, going away from Salvador's toward Jian She Lu, cross at the traffic light and continue on the same road (I think it's name changes there though). Walk down the first road on your left, and the LYS is a little way down on the right. (sorry - I do directions by landmark).

And if you want lots and lots of choices, there's always the yarn section down in the Lou Si Wan in/near Cheng Gong - if you're taking the bus, the 170 and the 212 go from different places in the city and stop next to the Lou Si Wan — soooo many little yarn shops all in the one section.

there were people doing some form of martial arts there (near the SheDa track) at the same time about a year ago - not sure if it was the same teacher/group

also, someone had mentioned they do tai chi w/a teacher in an open area at the top of the hill at Yun Da early in the morning

sorry no details for either one - just the rumor mill

do you know if there is still one down by Dianchi Lake?

anybody know if this is still there? the website no longer comes up