Odio - Create GIFs with live audio
Giphy Chrome Extension - Respond to emails, tweets & more w/ GIFs in a jiffy
GifLab - The easiest way to create GIFs on your iOS device
PopKey for Desktop - Quickly share ridiculous GIFs from Mac or Windows
Gifmock - Easily create high quality GIFs
All the GIFs - Search all the GIFs right from your Mac