It's Magit! A Git Porcelain inside Emacs.

Emacs incremental completion and selection narrowing framework

make Emacs bindings that stick around

Jump to things in Emacs tree-style

Emacs auto-complete package

The Lux Programming Language

Emacs Mini-Buffer Actions Rooted in Keymaps

A Better Java Development Environment for Emacs

An Emacs major mode for Twitter

Monokai for Emacs is a port of the popular TextMate theme Monokai by Wimer Hazenberg.

Save Emacs buffers when they lose focus

Emacs minor mode to highlight each source code identifier uniquely based on its name

Major emacs mode for editing Common Intermediate Language files.