Sometimes the smallest and simplest widgets are the absolutely coolest. In this case, mooSocialize fits that description. Similar in concept to the social bookmarking toolbar from AddThis.com, mooSocialize allows you to consolidate submission links for various networks in a neat little slidedown/out panel:

mooSocialize uses the MooTools JavaScript library to generate the fluid effects and is one in a number of different MooTools-based extensions produced by the artViper designstudio team.