One of the benefits of being a YouTube Partner is being able to put Image Map with your banner. You can use this with your banner image to put links to other website or links. To do this you could either use Adobe Fireworks or Dreamweaver, but I chose to use a free website Image Map Tool as I didn't want to download or pay for these programs just to do one thing.
The only problem with using this website was with the links, for some reason after formatting the links would move and I had to change where they sit on the image to counteract this. If you look at the above image the links are off a little, then after generating the code they would cover the image (well nearly).
Above my YouTube channels page with the image mapped with links. The white square is where an advert was.