
Here's the list:
ABC News, Amazon Product, audioBoom, Audiomack, Bandcamp, BBC News, Blab, Bleacher Report videos, Break, Brightcove, CBS News Video, CNBC, CNN, CNNMoney, CollegeHumor, Comedy Central, Coub, Dailymotion, Democracy Now!, dumpert, 8tracks, ESPN, Facebook, Flickr, FORA.tv, Fox News, Funny or Die, Gamespot, GameTrailers, Getty Images, Gfycat, Gifs.com, GitHub Gist, Global News, GoFundMe, Google Drive, Google+, Google Sheets, Healthguru, Hudl, Hulu, HumorTV, IGN, IMDb, Imgur, Indiegogo, Instagram, Internet Archive, İzlesene, JW Platform, Kontinental Hockey League (КХЛ), Kickstarter, Kiss Video, Libsyn, LiveCap, LiveLeak, Livestream, Mail.Ru, Medium, Metacafe, Mixcloud, MLB, MRCTV, MSNBC, National Geographic Channel, National Geographic Video, NBC News, NBC Sports, NHL Videos and Highlights, NPR, The New York Times Video, Oddshot, Pastebin, Pinterest, Plays.tv, Podbean, Prezi, Reddit threads and comments, Rutube, Scribd, SlideShare, SoundCloud, Sportsnet, Spotify, Steam store, Stitcher, Straw Poll, Streamable, Team Coco, TED Talks, The Atlantic Video, The Guardian, The Onion, TinyPic videos, TMZ, Trailer Addict, Tumblr, Twitch, Twitter, Ustream, VBOX7, Veoh, VEVO, Viagame, Video Detective, Videomega, vidme, Vimeo, Vine, VK, Vocaroo, Vox, Washington Post Video, WorldStarHipHop, The Wall Street Journal Online, XboxClips, Xbox DVR, Yahoo! Screen, Youku, YouTube, Zippyshare audio files.
Give it a try, but PLEASE use the Preview button before posting. You never know what you might actually get and I don't want to have to be going in and fixing people's mistakes.
And what better way to demo a new <embed> plug-in than by posting a video of a guy <embedding> his car in a second-story window? Thanks, OCFirefighters!