I generally think social media buttons are ugly, cumbersome, and not terribly effective. But if you have to use them, keeping them in a neat, thin horizontal row like this example from Joost De Valk's site is a nice way to do it.
October 16, 2011
View Full Size
Go To There →
There is some hope. Plugins like Sharrre make it possible to style them.
<h1>multi-line block of code</h1>
<span>be cool yo.</span>
Current ye@r *
Leave this field empty
Notify me of follow-up comments by email.
Notify me of new posts by email.
*May or may not contain any actual "CSS" or "Tricks".