If you’re looking for photos to use on your blog on in a publishing project, you need to add Photo Pin to your bookmarks. This delightful search engine will search Flickr for Creative Commons images matching your search criteria. Search results are displayed as thumbnails which link to a larger preview of the image and a panel with download options and attribution information.
Photo Pin is a delightful way to find just the right photo for your project. Warning: It can also be very distracting.