photoshopessentials.com

photoshopessentials.com has a lot of well developed tutorials. I find them easy to follow even though some of the tutorials are for different versions of Photoshop than the one I have a license for. Regardless, most of the features are the same as Adobe is one of those companies who release new versions often despite very little change (something I find annoying).

This tutorial on how to use the Free Transform tool is a great place to start.