snipMate - TextMate-style snippets for Vim. "snipMate.vim aims to be an unobtrusive, concise vim script that implements some of TextMate's snippets features in Vim. A snippet is a piece of often-typed text that you can insert into your document using a trigger word followed by a <tab>."
Extremely powerful once you dare to rely on it. Also very easy to extend by own snippets (which I almost exclusively did in the beginning, I’m only learning about all the useful snippets already defined).
