Here are some links you might find helpful:
The MTGS cube forum – Undoubtedly the biggest and best community of cube owners on the internet. Come here for cube resources and advice for your cube.
Evan’s Erwin’s cube site – Evan frequently has articles from guest cube writers, has documents describing drafting different strategies, and has some forums attached.
My Cube Thread – The most up-to-date version of my cube is here, along with discussion on changes and the like.
Tom LaPille’s introduction to cube – Exactly what it sounds like. If this doesn’t convince you magic is awesome, give up magic now.
Usman Jamil’s cube site – Usman puts a huge amount of work into writing about cube, and he’s just started writing for SCG. I’ll gratuitously plug everything he’s written or spoken about cube – even if I don’t agree with it, I can at least say you should think about what he’s saying.