(Oops, Susan at the great blog, The Book Chook, just pointed out to me that Sprixi is charging now, so I’m removing it from my The Best.. list)
Sprixi is a nice search engine for images, mostly ones that have a Creative Commons license. It’s design is very attractive and easy to use. The key reason I like it, though, is because when you want to use one of their photos, it automatically shows whatever permissions are required.
It’s been off-line for quite awhile, but has just re-opened for business.
It’s on The Best Online Sources For Images.