I'm pretty sure most people are aware of the huge amount of content available on sites like YouTube, Megavideo etc., and of the existence of hangers-on sites such as Keepvid, Clip Nabber etc. as well that let you leech the FLV files directly. Furthermore, I'm also sure that you've noticed many of these leech sites not working more often than not nowadays.
Megavideo
All times are UTC. All content licensed under the Creative Commons Attribution-Noncommercial-Share Alike 3.0 License.