Since there are thousands if not millions of patterns available online, it’s often hard to find what you want to knit. Enter Knottie’s Pattern Database. While still in it’s infancy, Knottie’s Pattern Database is poised to simplify your search for the perfect pattern. Online patterns are added into the database and categorized by yarn amount, pattern type, difficulty, yarn weight, etc. All you need to do a search and a list of registered patterns appear.
Patterns are still being added and can be added by visitors as well. I highly recommend that you check this one out.