Pool of photos for term extraction I need a pool of photos (if possible with description) for my project. I mainly have to perform term extraction for semantic searching. Is there something available out there that is made available for such kinds of thing?

I'm going to mine the description of these photos, maybe build ontologies and then perform search on them. The result of the mining might give useful terms about the pictures.
One good way is to use Flickr. For your project you could use available API for downloading photos with related information.

If you are using Java you could use the classes on Google Codes.