The document provides recommendations for various free online tools that can be used in the classroom, including tools for image sharing (Flickr), bookmark sharing (Delicious), website archiving (Wayback Machine), wikis (Wikipedia, Seedwiki, PBWiki, Wikispaces), database searching (Alabama Virtual Library, Serials Solution), video downloading (Discovery Schools), podcasting (PodOmatic), teleconferencing (Skype), note taking (Google Documents), bookmark shortening (Tinyurl, Snipurl), and citation generation (Noodle Tools, Citation Machine, Easybib). It also discusses using wikis for collaborative study guides and draft reviews, as well as planning required for student wikis.