EBay: where are my next 100M users?

During search results, etc: Instead of displaying ads like "Buy guitar at EBay", EBay could as well display a listing that is ending in the next 10 minutes.

After all, EBay is big customer, and and any search engine will be ready to accomodate your request to serve hot URLs instead of pre-cooked URLs.

If EBay can display this during search results, target these results in social networking sites like facebook and myspace. Here are the next generation of citizens - Gen Y and Gen Z - ready to be hooked on to EBay.

Brag yourself, propagate your name - Yahoo

Hotmail: A signature line saying Free emails by hotmail.com helped Hotmail spread its name.
This is a great idea from Hotmail/Sequoia, etc...

Who copied this very well: Google. Any time we see text ads in this blog, or in linked.com, we also see the text "Ads by Google"

Look at Yahoo's ads in National Geographic, there is no mention that the ads are from Yahoo.