Facebook Facebook.com, fbcdn.net, fbsbx.com, fb.com, fb.me, messenger.com, m.me They're scum, and they have thousands of domains. This entry will likely always be incomplete Instagram instagram.com Owned by Facebook Disqus disqus.com, disquscdn.com Tracking, adding nothing of value to any website Whatsapp whatsapp.com, whatsapp.net Owned by Facebook Giphy giphy.com Owned by Facebook, they pronounce the name of their website with a hard 'g' which ruins the joke Wikipedia *.wikipedia.org Bad policies, editor power struggles, way too hard for a newbie to get involved, no original information, fundraisers every other month, search engines return wikipedia blocks instead of actual search results Boredpanda boredpanda.com Specifically designed to be a time-waster, and I come across links to it more often than I want to Buzzfeed buzzfeed.com, buzzfeednews.com Top 18 reasons why this site is blocked! Number 7 made my dog faint! Locals locals.com Pay-to-play 'social network' that's not worth my time.