Last night the Y! Search blog announced a weather report indicating that the Yahoo index was updating overnight. Tim Mayer who usually lets us know about these updates told us to expect some changes most likely in response to spam reports and feedback from webmasters. The Y! Search Blog says:
We just rolled out a new search index last night. So, as usual, you may see some changes in ranking as well as some shuffling of the pages that are included in the index throughout this process. This update should be complete very soon.
I have spent the morning tracking down some forum threads on the recent update. While it may still be too soon to tell the effect of these changes. A thread on Digitalpoint Forums and WMW so far are the most active. From the forum members, most from my searching have indicated positive results from this update. Its seems like a big update from what I can tell. Some webmasters are seeing upward changes in their sites ranking and some are seeing no changes at all.
If you have been following our reports on Yahoo lately, Barry did an excellent post on websites ranking poorly in Yahoo but doing well in Google. There has been some good discussion lately about the differences between Yahoo and Google algorithms. Lately I have been getting a lot of emails from clients and friends about how to improve their search engine rankings in Yahoo. So what does Yahoo like? Barry profiled at the beginning of May new tags Yahoo has released to let them know about your most important content. There are also some good tips in this WebmasterWorld thread.