Difference between Google, Yahoo and MSN

What are the differences between these search engines in terms of seo optimization?

Yahoo and MSN have a taste for fractionally higher keyword densities ,(generally about 0.5% more)
dont have as many filters and dont wory about pagerank algorythems.

optimise for google and the rest will follow
(only messing the rest will probably get you to the top of thier serps faster)

there is not that much difference in terms of on page optimisation.
its more offpage like backlinks and PR and filters where google differs from the rest.

i would suggest optimising for BOth google and yahoo.

both engines count. you may have more visitors from yahoo than you expect..

Google likes subdomaining a lot more than other SE's

sample.com/music

will rank lower on google than music.sample.com

also hyphenated page names help in both but especially google.
eg
music-samples.html

thats old news darksat. It was like that but now,
google is able to identify unhyphenated page names

Since you know so much dont suppose you could answer this for me.
http://www.ozzu.com/other-google-information-and-resources/advanced-google-backlink-question-t31001.html

I Dont know much but am guessing here.

I am guessing that google is counting more than one backlinkk to per page. -every link is a vote for another page..

however, we will not be able to see that effect cuz our site backlinks are shown up as per-page basis.

is my guess making any sense?

This topic has been covered before and I think everyone is correct.

When I am optimizing for a site, I notice that Yahoo and MSN take more consideration in on-page factors, especially the description tag, and the higher keyword density. With Google, you need those backlinks.

In the end though, I never optimize each seperately. Just do honest seo and you'll do well in both.

Google counts majorly on backlinks whereas msn/yahoo and associated engines look at keyword density using backlinks and anchor text as an extra confirmation.

Good keyword density on your pages - good backlink generation with optimized anchor text and you cater for all the engines.