Forgive me for being dumb! I used to be able to type in a command and see the cached pages and inbound links in Yahoo all in one go, has this disappeared and what was the query? Sorry, jaded brain due to new baby!!
site:something.com also works. If you type the domain directly into yahoo.com it will display indexed pages only; not pages that link to the domain. If you try site:something.com or the one Malok provided it redirects you to Yahoo Site Explorer which has the information you are looking for.
Thought I was going mad, this isn't now working in yahoo.co.uk but is working in yahoo.com, yahoo is wierd sometimes!