Members can likely post videos with the video's http link using the Media tool located above a CowboysZone message reply box. The tool works with videos hosted by 8tracks, ABC News, Amazon Product, Audiomack, Bandcamp, BBC News, Blab, Break, Brightcove, CBS News Video, CNBC, CNN, CNNMoney, CollegeHumor, Comedy Central, Coub, Dailymotion, Democracy Now!, dumpert, ESPN, Facebook, Flickr, FORA.tv, Fox News, Funny or Die, Gamespot, GameTrailers, Getty Images, Gfycat, Gifs.com, GitHub Gist (via custom iframe), Global News, Google Drive, Google Sheets, Google+, Healthguru, Hudl, Hulu, HumorTV, IGN, IMDb, Imgur, Instagram, Internet Archive, JW Platform, Kiss Video, Kontinental Hockey League (КХЛ), LiveCap, LiveLeak, Livestream, Medium, Metacafe, Mixcloud, MLB, MRCTV, MSNBC, National Geographic Channel, National Geographic Video, NBC News, NBC Sports, NHL Videos and Highlights, Oddshot, Orfium, Pastebin, Pinterest, Plays.tv, Prezi, Reddit threads and comments, Scribd, SlideShare, SoundCloud, Sportsnet, Spotify, Steam store, Straw Poll, Streamable, Team Coco, TED Talks, The Atlantic Video, The Guardian, The New York Times Video, The Onion, The Wall Street Journal Online, TinyPic videos, TMZ, Trailer Addict, Tumblr, Twitch, Twitter, Ustream, Veoh, VEVO, Viagame, Video Detective, Videomega, vidme, Vimeo, Vine, Vocaroo, Vox, Washington Post Video, WorldStarHipHop, Xbox DVR, XboxClips, Yahoo! Screen, and YouTube.
You may also consider posting the webpage link where the trailers are embedded if they are hosted on a site not listed above. Note: be cautious of any non-family friendly material found on a webpage where the trailer(s) are located before posting links here.