How do I find out whether something was submitted?
mbrubeck: It's not perfect, but you can go to http://searchyc.com/ and (on the results page) choose "submissions".  Sometimes a domain-only search is good (if the topic you're looking for has a unique domain), other times you'll need to come up with some combination of domain and title keywords.Or you can do a Google search with "site:" and "link:" like
http://www.google.com/search?q=site%3Anews.ycombinator.com+l...