Last week we had informed our readers that, a possible Yahoo! update was underway due to which there were various reports of massive ranking changes in the Yahoo! SERPs (Search Engine Result Pages).
Yahoo! announced yesterday that it is in the process of making several changes to its crawling, indexing and ranking algorithms. Just as many had previously experienced, this latest pre-update timeline might become a cause for concern. We might be seeing several instances of ranking changes and page shuffling in the index.
However, some time ago many Webmasters had complained of issues related to 'Deleting of URLs' in Site Explorer. According to Yahoo!, these issues have now been fixed.