I just combined two tips I've read here, and I think it's pretty cool.
Select any word or phrase on a page and drag it to an empty spot on the toolbar. Phoenix will pass that search to Google, Google will do an "I'm Feeling Lucky" search, and take you to the "best" page for the search.
For instance, I was on another forum where someone suggested a program called IrfanView. Select, drag, drop, and I'm at the developer's webpage.