Yahoo SiteExplorer is down forever.
Bing Webmaster Tools shows ONLY OWN sites.
Yahoo Search is non-sense. Do you try, before you post?
I really donot understand, what you guys are talking about. All your "solutions" doesnot work. However I have already mentioned, what is working pretty well.
Forum Members are very right about yahoo site explorer, it has be shutdown and Bing website master tool has taken it position. It is due to fact that yahoo and bing have join force in search engine....
Depending on the backlink analysis depth you want, you can:
1. google for link:http://www.yoursite.com
2. check out some free tools like ahrefs and seo spyglass (free version)
3. used paid versions of seo spyglass; buy majestic seo - both deliver, spyglass is much cheaper.
Note: if you want to check backlinks for your own website, please remember that best results are produced by Google Webmaster Tools (GWT). Sometimes people have a wrong perception that they need backlink checker to monitor their own backlinks.
Again, best solution to track your own link-building progress is GWT, your competition - any of the options listed above.