This document discusses several photo sharing websites - Flickr, Photobucket, and Picnik. It provides information on signing up for accounts, uploading and editing photos, and sharing photos. Flickr allows uploading of 200 photos for free accounts and more features for paying accounts. Photobucket allows hosting and sharing photos for free. Picnik is an online photo editing tool that can be used to edit photos from sites like Flickr and Photobucket. The document also discusses advantages and disadvantages of using photo sharing sites for educational purposes in the classroom.