vundle

Install Vundle:

git clone http://github.com/gmarik/vundle.git ~/.vim/bundle/vundle

Add these lines to vimrc:

set nocompatible    " be iMproved
filetype off        " required!

set rtp+=~/.vim/bundle/vundle/
call vundle#rc()

" let Vundle manage Vundle
" required!
Bundle 'gmarik/vundle'

" vim-scripts repos
Bundle 'vim-plugin-foo'
Bundle 'vim-plugin-bar'

filetype plugin indent on    " required!"

New vim plugins usually have its git repo. If not, check tho GitHub repo of vim-scripts:

https://github.com/vim-scripts

Install plugins:

:BundleInstall

Update plugins:

:BundleInstall!

Remove plugins (not listed in vimrc):

:BundleClean

Plugins installed by Vundle can be co-existed with manually installed plugins.