I do video for a number of user groups, and try and encourage them to use ExposureRoom for hosting although most seem to want to use a more high profile video hosting site that has a cleaner UI. While I admittedly find the ExposureRoom look and feel a bit offputting (poor contrast, extremely confusing and unintuitive navigate) the feature list here is much better with extremely flexible thumbnails, no limit on video size and even HD embedding possible if you want it.
And none of it hived off into a 'Pro' account that has to be paid for :-)
Most importantly of all the support here is fantastic. While other hosting companies will just ignore emails or requests for help when a video just won't upload ExposureRoom are always quick off the mark in offering help and workarounds (FTP access!) while they try and get to the bottom of any problems.
On one occasion I'd spent 2 months trying to get a video uploaded to a video hosting service. It was ExposureRoom who diagnosed the fact that a bug in my compression software was rounding the pixel width of my video to 1279 and not 1280 and that Flash transcoding needed the width to be a multiple of 4. Now THAT'S what I call service!
Some of the user groups I'm involved with prefer to have their own area on a site somewhere eg my videos for the VistaSquad user group typically end up on their Pro account on another video site. But I've been putting most here on my 'personal' account which user groups then embed in their own blogs. Over time it's got kind of messy with personal stuff being mixed in with technical user group stuff.
So for the last few weeks my 'user group' videos have started to be posted on a separate account area called 'RIAViewMirror'. Alas, there's no easy, quick way to move all the existing videos across to their new home so they'll stay here, but if you're looking for new videos I suggest you keep an eye on the new channel rather than here.
Cheers,
Ian