Delicious links don't show up in Google webmaster tools. I have at least one page with 100+ links from delicious.com to it, since two years ago or more, but webmaster tools doesn't show it. Is there any way to find out whether I have pages linked from delicious somehow?
Yes there is - Delicious supports the
site: operator, same as the search engines. So if you search for
site:example.com it will show everything from example.com. (There doesn't seem to be a way to order them in anyway.)
I just noticed that Yahoo's Site Explorer will show your delicious tags and bookmark counts.