Recently, Yahoo! Hong Kong changed its search result interface, which is now the same as Yahoo! US. The change also includes update of search algorithm.
For instance, I found the ranking of two sites from my company has dropped. One from 2 to 3, small change, and the other from 8 to 15, out of the first page.
One weired thing is that in Yahoo! Hong Kong, the search result shows up some Korean websites, but the page only includes several Chinese keywords. This proves that the importance of keywords to the ranking is becoming less. At the same time, the content relevance to the search phrases are becoming less as well.
Instead, the importance of two elements has been increased, first in-links and second pages in the same domain. My guess is Yahoo! will also analyze the in-links’ content to see how relevance are they to the search phrases. This is yet to be discovered.
According to many articles, search engines especially Yahoo! and Google are always looking to rank the contents more meaningful and relevant. So, it makes sense if they do care about the references, and the corresponding content.
http://www.icanlearn.hk/
http://www.icanmake.hk/
