Neat voting per post plugin for WordPress.

Asymptomatic – Votio Again
Hey, do you remember that Votio voting thing I was going to write? Yeah…

It lets you add little voting boxes to every post in a list of categories you specify.

This is probably my worst plugin so far for having to tweak actual code. Call me lazy. You’ll need to add a custom template tag (< ?php votio_ballot_box();?>) inside The Loop wherever you want your box to appear. Depending on your theme, this could be on more than one page. You’ll also need to modify your CSS if you want your voting box to look anywhere near as snazzy as the one here.