Simple, light, flexible, and good-looking share button jQuery plugin.
Features
It doesn't load any iframes or extra javascript and overall load time is tons faster.
It looks simple and clean by default, and can be customized in any and every way.
All you have to do to use it is include the script and call .share() on an empty div. That's two lines of code total, the script link and the share call.
It's tiny and compact, expanding only when the user actually wants to share something.