Part of my portfolio is informational products. I spend a lot of money advertising them in adwords. However lately - Youtube (now being owned by google) has been given a free ride in the serps. Often times now the information I'm trying to sell using certain keywords, is being given away by someone on youtube. Which is fine - it's great to get free stuff on the internet.
However I just thought I'd throw this out there for AWA - Google may want to rethink the stuff they let freeload to the top of the serps, as it may effect their advertising revenue. I'm sure they already know this, but I thought I'd throw this advertiser's opinion out there.