When I want to optimize a page for top Yahoo! rankings, it just happens. Little to no effort = lots o distribution. I can't think of a single site I have ever worked on which has not got decent Yahoo! distribution. Google, on the other hand, either takes a bunch of money, time, or understanding to manipulate. Last November Google made changes that most SEO's still do not understand to this day.

Google is so far ahead of it's competitors that it is a joke. I think they honestly hold back tons of information and innovation (perfecting it in the background) just waiting for competition to have an exciting story to squash.

Yahoo! dumped Google. Google added a billion pages to it's index. Which got more coverage in general media...Google adding a billion pages.

Amazon A9 just launched. Google just launched the ability to target ads to your neighbor's house. Google's new technology will allow small people with low funds to cause huge ripples in social and political processes...I, for one, think it is fun to mix things up a bit :)