There seems to be a Yahoo Search update taking place now. A WebmasterWorld thread has discussion around the update. We do not have official confirmation from the Yahoo Search Blog yet, but we didn't have confirmation the last update either.
The first report came in early yesterday morning and since then, many others confirmed seeing an update as well. Let me pull out the key findings from the thread:
- Link counts may have dropped
- Some are reporting canonical issues
- One person reported "different titles and descriptions for singular vs. plural of my main keyword. It's the same URL, so kind of odd."
Why did Yahoo not announce this update? Well, maybe they will today or tomorrow. But the Yahoo Search Japan blog announced it the other day. It translates to:
Yahoo! In search, Yahoo! Inc. UEBUSACHIENJIN has developed the "Yahoo! Search Technology (YST)" has started a full update of the index.The Index Update?
YST, every day to make a more user-friendly search engine, such as Japan's own and respond to the world stage and improve the work of Akira Osamu develop new features and functions. To reflect the results of this search engine, built-in indexer will update the entire index. Position changes are expected to be improved with the results of this search. The full completion of the update takes a few days.
Yahoo! Search Project
The last update was a small hiccup on February 9th but a larger update was on or around January 19th.
Forum discussion at WebmasterWorld.
Update: We helped coerce Yahoo to post weather updates again.