Ravelry:

Jody's description:

Ravelry is an online Knitting (and other fiber related skills) database, forum, and social networking site.  You can connect up with fellow knitters; catalog your projects, books, needles, yarns; search by patterns, yarn, etc through other's projects; join conversation forums on subjects ranging from knitting and spinning to hobbies (your favorite book or movie), eras and related skills through the ages (ancient knitting, naalbinding, tablet weaving, kumihimo).  If you are looking for a pattern, key word searches can be very fruitful - "lace triangular shawl" will bring up a variety of patterns from the very simple to the very complex, as well as linking you to all of the projects with pictures of that shawl so you can see other's interpretations of the patterns.  You can also mark those patterns as you see them, for future reference and ease of retrieval.  BEWARE: The unsuspecting fiberist can lose HOURS there in the blink of an eye!