TTW Mailbox: Flickr-like Site for School?

A School Librarian writes:

Dear Michael –  I sat down with a bunch of my middle school students as they came into the library today and we talked about how we could transform our little public school library into a fabulous space for them. They had great ideas, and I shared some of YOUR ideas with them. I think we will begin changing things next week (I’ll ask permission from the boss after it’s done!). 🙂

Do you or your readers know of any “safe” photo sharing sites like FlickR that we might be able to access in schools. My District still blocks FLickR, Google images, iTunes, any social networking sites, etc. I have only been successful so far in getting unblocked… working on podcasting next… Again – one step at a time. …and I’d love to help create such a site if there is a way to do it!