Everyone knows about Youtube and quite a few teachers use it, but there are a few more resources that are slightly less well-known and can liven up lesson points or bring more English input to an EFL teaching situation.
Many teachers already know about TeacherTube, but not everyone does. It’s worth checking out if you haven’t already seen it! Unfortunately, their search and tagging system is lacking and their categories are not very useful–there’s no ESL/EFL/etc. category, so it’s difficult to find good material here. I suspect it exists, but it’s difficult to find. If you have any hints on how to find it, let me know. Videos can be downloaded once you find something you like, which isn’t easy to do at YouTube. Apparently it plays ads before videos, but I haven’t seen any because the version of Adblock Pro that I’m running on Firefox keeps them from showing. A free membership will also allow you to skip the ads.
Vimeo.com is an original video-oriented site, and it was high-quality-oriented before Youtube allowed HD uploads. I think it allows longer videos, as well. Many Vimeo videos can be downloaded as Flash or .avi files without going to the special lengths required to download Youtube videos. There’s no particular orientation toward educational videos here, but there is TESOL content to be found, including the ESL Channel. In addition, among the serious videographers’ work you may find something inspiring for your class anyway, or something to watch to relax. (Check out this Japanese festival video, or this time-lapse video.) The above video of my part of the world (which I advise clicking through and watching in HD if you have the bandwidth) is beautiful and relaxing, but could also be a fun change-of-pace exercise, prompting students to write down as many adjectives as possible (fast! wet! furry! lonely!), etc. As a bonus, the comments at Vimeo are often less of a Wild West than the comments at Youtube. There are limitations on free uploads if you want to make videos and put them online, but I don’t know much about that, I’m afraid.
Veoh.com is another general Youtube-like site, but it’s even more of a free-for-all than Youtube, if that’s possible, and I only recommend it if you are looking for a clip that you absolutely must have. (For example, bilingual Begin Japanology clips can be found there–English in one audio channel, Japanese in the other audio channel.) I don’t think an original teaching video is likely to be found solely on Veoh and not on Youtube, TeacherTube, or Vimeo, but if that’s not the case, please correct me!
Manythings.org’s video section collects English-teaching videos from Youtube. These are mostly instructional videos on specific points, aimed at independent learners, but some are more useful for classrooms. These include singalongs, videos with transcripts and subtitles, and so on. ESLVideo.com may give you some ideas on how to use Youtube in your classroom–they have Youtube videos (music, interviews, etc.) posted with quizzes. The quizzes are mostly simplistic, good for either checking word-by-word listening comprehension or surface-level grammar features, but they could give you ideas about how to use non-TESOL-focused videos in an ELL classroom.
If you’re looking for lesson material on these sites, don’t forget to a) play the “alphabet game” and search for ESL, EFL, ELT, and TESOL, and also b) try some things that aren’t in the TESOL genre, like how-tos, very simple food or drink preparation videos, travel videos, music videos, film clips, etc. I created a pretty good lesson out of some footage aimed at pharmacy school students once, too, for a student who was going back to Japan to be a pharmacist. Don’t hesitate to search for very specific themes such as “pharmacy” or “fast food.”
As mentioned in this thread on using videos in the classroom, it’s best to turn off “related videos” and preview the videos before putting them up on a projector, just to make sure you don’t have any unpleasant surprises!