I have spent quite a bit of my computer life in and on free pattern sites.
There are an endless number of them out there. Most are easy to navigate.
Some sites ask you to "join" or "sign up".
There are also quite a few sites that you don't have to enter any information to get the patterns.
It's like a clearance rack in ways...keep looking, you will find great patterns here and there hidden among the rest of them.
Here is one that I like, http://www.free-crochet.com/ It is easy to maneuver around in and has some nice patterns.
There are additional tabs that you can check out too.