Specialized Genealogy Book Search!
I just created a search box specifically designed to look for genealogy related books through online books and booksellers, as well as WorldCat. The search box is to the left, here, and also on my main page, http://www.protopage.com/relativelycurious . Just enter the name you want, with or without the term ~genealogy (but that will certainly narrow down your results) and voila! Genealogy books online!