This is a copy of some review notes, found here.

Google Video –
Pros: Apparently unlimited file size; flash player that you can host on your blog; no ads in video; 2 day approval; good search features; high traffic; cross platform uploader tool.
Cons: Audio is somewhat mangled (listen to intangible and then watch the intangible video).

YouTube –
Pros: Flash player that you can host on your blog; no ads in video.
Cons: 100MB max file size. Lame! Upload via browser.

Vimeo –
Cons: 20MB space, per week. Ultra lame!

OurMedia –
Pros: Unlimited bandwidth; grassroots sort of vibe.
Cons: Uploader tool is not cross platform (no linux client, yet); confusing sign up process (requires identical login on archive.org).

Download.Com –
Pros: High traffic; can grab video from elsewhere on the net (ftp once to your own account and you’re done).
Cons: Ads in videos; search sucks (although my video is published, where is it??); 3 week approval process.

CastPost.Com –
Cons: Requires you to create your own castpost blog; login doesn’t work in alpha.

Honorable Mention:

VideoBomb –
Not a hosting service; good for getting traffic to your videos, though.