This document provides an overview of various social media platforms, including:
1. Social networks like Facebook, Google+, and LinkedIn that allow users to connect and share content.
2. Bookmarking services like Diigo, Pinterest, and Pinboard where users can save and organize web links and pages.
3. Social news sites such as Reddit, Digg, and Slashdot where users can submit and vote on news stories.
4. Media sharing platforms like YouTube that enable users to upload and share photos, videos, and audio.
5. Microblogging sites including Twitter, Tumblr, and Instagram where users post short updates.
6. Blogs and forums for discussion through individual blogs