WebmasterWorld members are reporting major search results shifts at Yahoo over the past week. Some are saying "this is Yahoo's answer to Google's Florida update."
On November 2nd the following was first reported:
On Saturday, I noticed that after MONTHS my site had suddenyl gone up about 20 spaces in Yahoo serps. However, after Saturday the results are back to how they were...unfortunately. Is this a sign of results to come or is there another explanation?