How does Yahoo rank sites?

I would like to know the same. My sites don't rank well in yahoo.

For now as Yahoo update continues hard to tell till it's over..

[FONT=verdana][SIZE=2][COLOR=#000000]I think yahoo likes:[/COLOR][/SIZE][/FONT]
[FONT=verdana][SIZE=2][COLOR=#000000]
[/COLOR][/SIZE][/FONT]
[FONT=verdana][SIZE=2][COLOR=#000000]- high density, keyword-rich content
- non-duplicate content
- a few inbound links, especially from aged, established quality sites [/COLOR][/SIZE][/FONT]
and hates:
[FONT=verdana][SIZE=2][COLOR=#000000]- links from spammy networks / low-quality sites
- duplicate content
- low-quality sites in high-profile niches [/COLOR][/SIZE][/FONT]

On the recent update on Yoyo..have you noticed that sites with the keyword on the url ranks well...? and the rankings really shakes up.

I think have to crack their ranking algorithm. None of my sites rank well on yahoo.

Hafson is right, but the same things likes Google as well.
Yahoo likes when you are working everyday with your site: submissions, exchanging and so on.
Also prefer posting at Yahoo system blogs, forums, directories and other search engines.

As far as I know, yahoo gives more weigh on on-page optimization.
Though it's really quite hard to determine its algorithm..
sometimes you rank well in Google but not in Yahoo..

Sometimes its difficult to rank well on yahoo.

I don't think anyone on this forum has clear idea on how does yahoo rank sites
[FONT=verdana][SIZE=2][COLOR=#000000]One of my site is at rank 1 for very competitive keyword for many phrases while other has only home page listed. Other site has more than 1000 pages, all clean and unique but they all disappeared in last 3-4 months. Both sites have good links pointing to them. [/COLOR][/SIZE][/FONT]