no way how can they do this now in these days one of the best tool for links checking how can they do this man?
It's not the end of the world! There are plenty of other ways to check backlinks. Check out Blekko.com.
This news is not only 6 days old, rumors about site explorer shutting down were spread about half a year ago, only not all believed it would actually happen. Sure thing, this will make webmasters move and think a bit - which other useful and free service to use, but we shouldn't make a tragedy of it. We all know that Site Explorer was not accurate, and to get adequate results personally I had to combine it with majestic seo or ahrefs.com, otherwise it was all useless.
I am with you Guisbar. I don't always believe that one source is absolutely complete. I combine results using SEO Spyglass which pulls results from multiple areas at the same time.
I did a thread on this earlier in the week... Check it out here... It will answer pretty much alot of your questions, but not all. 2011 Is The End Of The Road For Yahoo Site Explorer! What Will You Ever Do Now? Holler! GC
It doesn't matter if Yahoo is shutting site explorer down, it was not such a good idea in the first place.
Sniff, sniff; This means that this is the end one of the more determining and trusting tools on the net for checking backlinks.