Board Thread:Support Requests - Getting Started/@comment-34718791-20171226173140

My name is Easylistening, and I'm new to FANDOM. I have a few questions about this website that I would like to be answered. They are fairly easy if you have been on FANDOM/Community Central for a long time. I've only joined today, however, and I have a lot to learn. If anybody could possibly answer these questions, I would dearly apprectiate it! Once again, I'm new, so I may not know such simple things. 
 * What is FANDOM?
 * What is a Wikia/Wiki?
 * How do you contribute?
 * Where can you find the Wikis about the topics you like?