Site specific Google

Like everyone on the planet, I use Google daily to search the web. I've always liked it's minimalist approach and the separate links to search newsgroups (which used to be dejanews.com) and news stories is nice too. But I regularly run across additional tweaks and tips that make my googling even better. Case in point, Chris Sell's blog mentioned there's a Google page dedicated to searching just Microsoft sites at www.google.com/microsoft.html. And a comment by Paul W pointed out that you can always limit a Google search to a specific site using "site:sitename" or exclude a site using "-site:sitename." Makes me want to run out and buy a copy of Google Hacks!