Pictures

On almost every blogging site I look at, they all tell me that pictures are the best way to attract people to your blog. Most of my blogs do not have pictures, just because they are hard to find and I've been having trouble with my camera. If I do have pictures they all come from Zemanta. Soon though I am going to test this theory and share with you my results.

Do some pictures work better than others? Are some posts better off without a picture? What are your favorite sources to find pictures?