Put your thinking cap on and visit Google Scholar. It’s difficult to browse the features of this tool, so bring some surnames to use in your test searches. Also check out Google Scholar Preferences and Advanced Scholar Search. Search some of your more common ancestor names and manipulate the search preferences to see the difference in the results you get. You may also try your unusual surnames. What did you find? Genealogy blog authors can answer this question on their blogs.
I was able to find articles written by people with the surnames that I searched, but nothing relevant to my genealogy. I wish that I could have searched by the article title, but I could only search for authors and publications. If I knew of a particular article or author that I wanted to find, then this tool would have been more useful.