A link for Image Results for darrent williams is the first link you see. Right underneath it lies three pictures of Darrent Williams. Think about the traffic those sites are going to get as a result of people clicking on those images and then through to their sites. The lesson – optimize your images.
For more information on optimizing images for search engines take a look at Grant Crowell’s recent post on SearchEngineWatch appropriately titled Optimizing Images for Search Engines.