Partially inspired by this post, and a number of posts on certain other boards, here are my top 3 best tips for learning Olympic Weightlifting:
1. Get a coach.
2. Get a coach.
3. Get a coach.
Seriously. An experienced coach, one who has competed and trained competitive lifters, is the best way to learn the lifts by far. A book is not enough. Web assistance is not enough. A weekend seminar is not enough.
How do you find a coach?
This pdf is a club directory from USAW. GoHeavy.com's Olympic forum is a real gathering place for coaches and lifters. Search there or post a question asking about lifting in your area.
If you can't reasonably get coaching regularly, then books and videos can help, as can uploading your videos and asking for tips from one of the forums on the right of this page. And making efforts to get coaching in when you can is still important.
But these are all inferior to regular work with an experienced coach.