If you are a knitter, crocheter or some other fibre nut, I can't recommend this site
highly enough. Sign up, wait for your invite and step into a
whole 'nother world. The database of patterns is mindblowing, and
there's even a new experimental widget that can find you a pattern
depending on what you want to make and what yarn you've got.
A great online knitting magazine full of every kind of (free!) pattern you could wish for. Also lots of good articles on a whole range of fibre related stuff.
Source of Interweave Knits, Interweave Crochet and Knitscene. Have a mooch around, as there are a number of free patterns available online, and sign up for their great regular 'Knitting Daily' ezine. Also does a large number of other crafting and fibre related magazines.
American company with a good database of day to day patterns
A wonderful library of almost every kind of stitch pattern you could want.
Patterns created for Drops yarn, there's something here for everyone.
