Just found this on Delicious: Several collections of super-sexy and super-shlick! social media buttons to ornament your blog. Juicy enough to eat, shiny enough enough to click. Here's a complete view of all the collections of buttons.
Your links to your other online profiles might get lost in your sidebars. Use buttons like the to call more attention to your Facebook or LinkedIn profiles.
Download the icon set and unzip it some place you'll remember (I always do Desktop).
Choose the icons you want and upload them to TypePad. (Control Panel > Files)
Pop them into your sidebars and link them to the relevant profiles (Design > Content > Widgets and use the Embed Your Own HTML widget).