there's also the unofficial The Strand Knitters (I have absolutely no idea what they call themselves despite having knit with them several times) who meet every Thursday in The Strand building on the corner of 8th and Charnleton.
We have the less-than-exciting name of Community Knitting Circle, and we meet every Thursday from 3 to 5pm. We're all very nice, you should come knit with us!
=o)