Facebook

You practically know the drill by now -- Facebook Live will play a major role in debate coverage, with numerous major news outlets using it as their streaming platform of choice. ABC News' agreement with Facebook will make it the star of the show between its ad-free stream and viewer-influenced commentary, but it's not the only choice. BuzzFeed, CNBC, C-SPAN, Fox News, the New York Times, PBS, Telemundo and Univision should also be streaming on Facebook, although the presentation you'll get will certainly vary.

Twitter

Twitter is once again determined to be a one-stop shop for live debate coverage. Its partnership with Bloomberg will deliver the debate itself, on-air analysis and the obligatory never-ending stream of tweets from viewers. You can watch on the web at debates.twitter.com, and Twitter's official mobile apps will help you tune in when you're on the move.

YouTube

You'd better believe that you'll have an abundance of YouTube streams to watch. Bloomberg, Fox News, NBC News, PBS, Telemundo and the Washington Post should all have live feeds on Google's video site, complete with commentary in many cases. And if you're more interested in observation than raw candidate banter, outfits like Complex and The Young Turks can help you out.

Conventional media outlets

Naturally, some of the bigger names in conventional media are streaming the debate through their own portals alongside (or in some cases, instead of) third-party services. ABC News, CBS News, CNN, Fox Business and Reuters should have streams through their websites and mobile apps. As in previous debates, though, you may need to authenticate your TV subscription when using certain apps, such as ABC's regular app.

Images: AP Photo/John Minchillo; AP Photo/Patrick Semansky; Reuters/Lucy Nicholson; AP Photo/John Locher