I have trawled the world wide web and below is a list of the best sites I have found for free knitting patterns, please, if you know of any more let me know.
For groovy modern patterns try Magnits and Knitty, both are magazine style sites that email monthly newsletters.
For patterns of everything from jumpers to intestines there is Knitting Pattern Central and Lion Brand also have loads of patterns and also how to knit instructions.
I have just come across The Thrifty Knitter who has all sorts cool patterns including ones for one ball knits. I got the pattern for this shrug from the Thrifty Knitter site and it's lovely.