A few days ago I noticed that Yahoo siteexplorer changed its GUI interface, but did not think too much of it at the time, but today I went back to check my backlinks, and it looks like I lost a few thousand in Yahoo... but I checked those of my competitors and they seem to have lost the same amount. So does anybody know if there has been a big change in the Yahoo backlink algorithm?
They might be improving things as it was always imho too easy to get ranked on yahoo compared to google.
I think it's just how many links Yahoo exposes through site explorer. I have been watching it for a while now and I think they tweak the reporting all the time. At the core though, I think their full index still has that information - it's just a question of how much they expose it to us (since it's a more expensive query for them to return all the data).