####Homepage:
http://www.vim.org/
####Guides:
http://www.vimninjas.com/ -> particularly this post
http://derekwyatt.org/vim/tutorials/ - Vim videos
http://vimcasts.org/ - more videos
http://vimdoc.sourceforge.net/htmldoc/help.html - vimdoc
http://www.viemu.com/a-why-vi-vim.html -> has some good tricks on how to get your Vim usage beyond the basics
http://astonj.com/tech/learning-vim/ -> same here