Okay - so if someone says how do i rank my site hi in the serps everyone will say you need quality backlinks and lots of them - that is the only way, right? So all these youtube video I guess are ranking so high for some competitive keywords is due to the fact that lots of people embed them and therefore by embedding those count as backlinks and therefore higher ranking - am I right in saying taht? TY BAD
Since the domain has millions of backlinks, the pages get a boost I assume. I'm not so sure Google would recognise embeded flash as backlinks.
Youtube is an authority domain so inner pages rank based on this authority. Google also likes sending traffic to other sites in its network.
A decent video will get many backlinks within Youtube, for instance each honor counts as a backlink, each similar video will cont as a link, so you want to have a common title with popular tags and then a lot of traffic will ensure that the video gets honors. Then of course there's natural links that you can also assist with - social bookmarks, blogging etc.
I don't really see how this has to do with Domain Names as such. I would've thought the SEO section of DP would be more appropriate: http://forums.digitalpoint.com/forumdisplay.php?f=12
I think you're right. But that's not the only reason why a youtube video rank high. There are many factors that influence its ranking.