Top sites for the amateur

An amateur is someone who, while they may be very skilled and knowledgeable in their area of interest, is either not paid to do so or does not have formal training. This distinguishes an amateur from a professional and the thing that an amateur does can be referred to as a hobby.

The term "amateur" is often used to tag adult-content websites. AboutUs aims to exclude adult content from AboutUs.org.

Below is a list of websites for amateurs in many fields who are looking for more information about their favorite topics. If you know any websites that would be valuable to amateurs, please add them at the bottom of the list, along with a short summary for each.