Facebook Like extension for Google Chrome lets you thumbs-up any web page
Just grab the Facebook Likes extension and you'll be able to submit any web page you browse. Just give the browser actions icon a click, and then click like. As long as you're signed in to Facebook, that's all it takes. If you're not, the extension will first pop up a window so you can sign in.
Likes also displays recent related activity from other Facebook users, which is a neat way to discover other items you might want to check out. Neat!
note: in case the author hasn't had a chance to fix the bug I reported in the Extension Gallery comments yet, follow the steps I posted on the page to get FB Likes installed!