I like the Share, Facebook, Twitter, and Pinterest buttons on Upworthy.
Adam Rifkin stashed this in Web Designs
More buttons on the Web like these, please!
For an example see this page: http://www.upworthy.com/the-7-warnings-from-gandhi-in-the-final-hours-of-his-life
I like both the floating SHARE box in the upper right hand corner of the page AND the solid FACEBOOK, TWITTER, and PINTEREST pages at the bottom of every Upworthy page.