financialhost - 5:49 pm on Oct 7, 2012 (gmt 0)

I'm sure that Overture (and the courts) would disagree with that statement.

Overture was a buggy, slow and completely unfriendly system.
When Adwords appeared it was superior in every way and users could do things 10 times faster than in Overture.
Adsense was also far superior than Yahoo's attempt at the same.

As for the other points - pretty much all decent search engines can do.