Today's tutorial comes from this site. It was a little difficult to follow exactly because they had an old version of Photoshop and they were using a PC. I used a fun picture I took while playing with my son at The Pit Park (everybody brings their old or unused toy cars). The effect wasn't exactly the same because I had to use a different texture than they did, but it was still useful because I learned how to feather a picture (New Layer, use the Marquee tool and then Inverse to get a frame, feather it using Modify-->Feather (25 pixels in my case), and then fill it with white using option + backspace.
The more useful tool I learned to use was Smart Blur. If you choose Edges Only you get a fantastic effect; you can then add a bit of coloring and such. Very useful if I just want a drawing.