Hate the new Google look? Change it back with a Userscript.
There are several new userscripts that have been posted to strip the left sidebar from Google's search results page. I've found OldGoogle to work well in both Chrome and Firefox. There's also REMOVE Google SideBar, Good old Google search, and a handful of others.
OG works for me, but you may want to try the others depending on which browser (and which particular version) you're using. Firefox users, of course, need to install Greasemonkey ahead of time to use the scripts.