YouTube Passes Yahoo As #2 Search Engine
Dekortage writes "According to the latest ComScore rankings, YouTube's search traffic for August surpassed Yahoo's. The latter dropped roughly 5% in traffic from July. Among other things, this means that Google now owns both of the top two search engines. AdAge further speculates on Google's experimental 'promoted videos' cost-per-click advertising on YouTube, suggesting the obvious: more money."
There is a special keyword to use on youtube to get to the porn section. You must not have elite access. Just email them asking for elite access with a hacker resume of sorts and you should be able to gain access. Just keep it on the down low though.
If porn is what you're looking for, there are sites very similar to YouTube where that's all they do.
http://www.youporn.com
http://www.pornotube.com
Just to provide two examples.