IQDB - Multi-service image search
PicsLikeThat - This is a visual and semantic image search system finding images on Fotolia.
isk-daemon - isk-daemon is an open source database server capable of adding content-based (visual) image...
NISE - The NISE Image Search Engine is a reverse image search engine (like tineye.
Exif Metadata Image Search - Search image metadata on the Internet. Exif image metadata search engine
Byo Image Search lab - Upload your own images or point to one on the web and we'll show you what it resembles.