youtube tactics

I'd like to download some (I mean a lot of) video ads from YouTube (not the videos, but the ads that are played before them) for marketing purposes Any suggestions for tools or ways this can be achieved? I won't mind some programming on my hack but I currently have no idea how. Also, YouTube is...

What can be done to upgrade channel authority? Youtube channels the channels into certain categories, according to him, or similar groups. News channel, next to the news channel, comedy channel or children's channel next to the channel of the comedy channel or children's channel offers...