[travisjeffery]

The OSS book, Vim Recipes is really great as well, and if you know something that isn't on there just fork it and push it yourself.

Here's another one a Byte of Vim, also free on a CC license, but not as good as the Vim Recipes I've found.

[mace]

Vim Recipes: http://vim.runpaint.org/toc/

A Byte of Vim: http://www.swaroopch.com/notes/Vim

This cheatsheet has worked really well for me: http://www.viemu.com/vi-vim-cheat-sheet.gif