We're not targeting a specific market. Our users are everyday folks looking for factual, trustworthy information on the internet; skews toward college/high school students by default, but that's not necessarily a demo we're targeting.
The logo should connote education, knowledge, information - as well as accessibility to that information and ease of use. Library and university logos tend to be stiff and intimidating. We want something that gives a sense of intellectual quality, but also approachability.
Logo should incorporate company name and should be scaleable to small/large sizes.