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Finally! Yahoo Search Weather Report : January 2010
The Yahoo Search Blog dusts itself off to announce a search update happening right now. The last “weather report” Yahoo announced was in September 2009 – typically, Yahoo would announce these updates monthly.
The Yahoo! Search engineering teams are rolling out updates to crawling, indexing, and ranking algorithms. Similar to previous updates, you may notice some ranking changes and page shuffling during the process, which we expect to complete over the next few days.