Is it against TOS to publish videos in Youtube and in the description write something like: "If you want more information about this subject, you're welcome to visit www.mysite.com" Thank You
That is a good way to drive traffic to your site. I have written a post about it:YouTube Drive Your AdSense Traffic
I think adding videos is a great way to get traffic. People seem to prefer watching a video vs. reading. Good Luck!
while i do same to bring traffic to my blogs , and it is not against tos , btw if i videos we put "click on ads on this page" , this could be against tos