Several webmasters and SEOs are reporting that the link reports in Yahoo Site Explorer is reporting drastically less links than ever before. I assume this is not being discussed as much as it would have been a year or two ago, simply cause Yahoo is out of search but some webmasters and SEOs are concerned over the major link drop.
I personally checked my January 2009 screen shot and compared it to today and I noticed a drop of over 100,000 links! Here is a before and after screen shot.
In January 2009:
A Search Engine Watch Forums thread has a post about this drop, as well as some tweets.
@rustybrick Do u have any theories on why people are seeing lots of link loss in Yahoo SiteExplorer? I saw you covered this topic...
Noticing a significant drop in link counts in Yahoo's Site Explorer for the "link:" - "except from this domain" option. Anyone?
Seeing a big drop in number of backlinks reported by Yahoo Site Explorer. Anyone else?
Did you notice a major drop?
Forum discussion at Search Engine Watch Forums.
Update May 23, 2010: Seems like most of the links lost are now back.