I would say almost all the videos posted here are uploaded to free hosting sites such as DirtyBin and myairbridge. Some are also uploaded to the attachment center. In the past I have always posted to all three when possible.
The pictures thread is 99.9% free file hosted. Some may be taken down after a few days, but most last long enough to see. The trick with any of these sites is to get them while available. Wait too long and "poof", gone.
Don't despair. If you are not a paid member here, you can usually get along pretty well. For myself, I deided to become a paid member mostly to support the site.