Knitting Convention held at the Santa Clara Convention Center; classes and a yarn market. Feb 10-13.
More details here : www.knittinguniverse.com.
Bay Area based knitters interested in attending might want to car pool or take CalTrain down there as a feral knitting pack.
Out-of-towners are welcome to say "hi" and raise a tankard together at the local pub and meet your knitting brethern.