While I learn many of my search tips from my colleagues at conferences like Computers in Libraries and Internet Librarian, I have found another way to tap into the expertise of search pros. Factiva is particularly good for finding specially-constructed, complex search queries that their internal search experts have designed for difficult or complex concepts. If I am having trouble getting the results I expect when searching a value-added online service, I pop the hood and see how the real search geeks would approach the topic.