Copy from: http://topseopro.blogspot.com/2007/05/seo-for-yahoo-and-msn.html Between them Yahoo and MSN account for around 20% of all UK internet searches. Tackling Yahoo and MSN search engine optimisation requires a different technique to Google. Yahoo's Optimisation Factors Yahoo Optimisation or Yahoo SEO is about improving your website's "organic" ranking for key search terms on Yahoo. Yahoo is more "on page" driven than either MSN or Google, the two other major search engines. By "on page", we mean that when Yahoo produces its results it relies on information it collects about a site from sources on the target website. 1. Meta Tag Title This is easily the most important meta tag. Very few sites with weak meta tag titles appear in the top rankings of Yahoo. My recommended approach is an interlocking phrase of 5 or 6 words adding up to no more than 60 characters including spaces. 2. Meta Tag Description The meta tag description is less important than the title for ranking purposes. however, the tag normally shows up in the results pages so it is seen and may be acted upon by potential website visitors. 3. Meta Tag Keywords These have little direct role in search engine ranking. Where they are useful is as a device for testing on page alignment. See below. 4. Page or Site Content The content or subject of a site is very important to Yahoo and MSN. Content for this purpose means words in general and headings in particular. It is important that this content has been highlighted in the meta tags title and description. 5. On page Alignment On page alignment of the meta tags and content are a key component of success with Yahoo rankings. The meta tags on their own will not work. Simply Clicks can carry out a quick and simple test to provide the information to improve rankings. Yahoo's Off Page Optimisation Factors Yahoo, like all other search engines measure the number and nature of inbound links (or IBLs) into a site from other websites. It appears, however, that Yahoo places a lesser emphasis on these links than other major engines. The most important off page factor appears to be inclusion in the Yahoo directory. However this costs $299. Simply Clicks is a Yahoo and MSN optimisation specialist. If you would like further information about Simply Clicks' Google optimisation services please e-mail using the link on the right. Simply Clicks has been involved in over 30 SEO projects for a number of multinational and UK based companies. If you have a specific SEO need or would like further information about Simply Clicks search engine optimisation services, please e-mail your requirements.
Uhm, you do know that all the major search engines more or less rely on these, right? (Save for the Y!Dir of course.) Don't believe me? http://forums.digitalpoint.com/showthread.php?t=413544 http://www.sitepoint.com/forums/showthread.php?t=182915 http://www.websitepublisher.net/seo-guide/ (Also note that the Yahoo Directory has pretty much been de-valued by Yahoo over the years.)
Dude sorry to say i don't think these rules are for yahoo specially. As DAN said every search engine in the world follow these rules.................... So try to get right informations..............................
Thats informative to the beginners seo. But this is the good technique to advertise about your company.
Use the page basics (Meta Tags, Headings, etc.). Write good content. Then get out there and get links. Because your time is best spent getting links. And quality incoming links deliver traffic, SEO Ranking is a side benefit. I've seen plenty of sites that are still able to manipulate Yahoo for high rankings.
Perhaps, the biggest difference is how they handle The Meta Tag keywords. Other than that the differences are likely to be minor. Yahoo does seem to give an advantage to its related sights. I have a one page Geocities site that I haven't done anything with in 9 months and it still gets a number two ranking in Yahoo with Google I have to earn that ranking.