I've come across a new knitting and crochet site that calls itself Ars Craftica: http://arscraftica.com
They are brand new so there is not as much content on it yet but they seem to focus on the geek community and unusual materials e.g. carbon fiber. They also have some sort of a contest: http://arscraftica.com/challenge.html
and some interesting pictures of various "guerilla knitting" and "knit bombing" projects: http://arscraftica.com/phpBB3/viewtopic.php?f=4&t=10
Overall they seem quite different from Knitting Help and somewhat complimentary.