We've created a list at List.ly and embedded it here - with the top tips we've been able to uncover about what you need to think about when uploading videos to YouTube so they are set up to get maximium exposure.
We've built a short list of recommendations - but here are a few other spots where you can get ideas about building & optimizing your YouTube Channel:
HootSuite's recent post: How To Build The Perfect YouTube Channel
Search Engine Watch post: 5 Advanced YouTube SEO Tactics To Drive More Traffic