This site presents a series of photographs taken from unusual angles or perspectives.
This clearinghouse for photographs related to the many museums and galleries in the Smithsonian Institution is a good starting point for kids' photography projects. The site has a searchable database of photographs as well as a topical index of photographs available.
Software (Windows in beta Feb 07) for annotating digital images with variopus media. Ideal for social construction and sharing of digital stories.
Image search tool that searches multiple free stock photo sites
Information on geo referencing techniques and tagging
"...I have compiled a list with sites that offer free stock photos."