Not trying to blow our own trumpet here, more set a context, but at Ensembl we're really keen to produce online help that's free and open for people to access wherever they might be. One of the ways we do this is a YouTube channel which is very popular. YouTube, however, is not accessible everywhere. We know that a lot of people access Ensembl from China, where YouTube is definitely banned, so we set up a YouKu channel for them, which is also pretty popular. However we are aware of a small number of countries, possibly where Ensembl is less popular but still, if there are people who want the stuff we should do our best to get it to them, where YouTube is also banned and we don't think a website entirely in Chinese is the best way forward for them. I don't think it's feasible to set up video streaming channels in all of these countries, but rather to find a way that we can broadcast to all of them. Does anybody know how we might do this? We're already considering SciVee and I've emailed them to ask if they have any censorship problems.
Your best bet is probably to also offer the videos from your own web site in a downloadable format.
Any other centralized location is bound to ruffle some feathers only to end up being banned in various countries.
I think Vimeo is a good alternative to YouTube with a bit more professional look.
Googling it up it seems there are quite a few alternatives on the market:
How about developing one in house? It would certainly be less ban-prone than these other hosting websites.
What about seeing if there are local flavors of YouTube in each country, I realize it could be a bit tedious to manage but it might be the easiest way to ensure that your videos are available.
Another thought on accessibility is that some people may not have sufficient internet connections to allow streaming, either in the speed they have or if some countries have very expensive data rates. If there's only streaming, each time someone wants to watch a video, they have to have the bandwidth each time. If they can download videos to their local machine, they can watch them without an internet connection.
This might seem a bit crude, but a PDF and a MP3 of the sound might be useful to people who have limited internet connectivity.