Sheldon Brown-Bicycle Technical Information. Excellent resource for referencing all things bicycle. Sheldon passed away a few years ago and some info is a little dated but mostly still relevant. Check out the "Articles" list at the top of the page. Plenty of good info to get you started. Learning the proper names of all the parts is very important and can help you search for videos and articles about maintenance and repairs. Practice changing your tire tubes and do it outside where you have to figure out how to get the wheel out of the frame with no racks or stand and only dirt or paved surfaces to lay your bike on without damaging it and using the pump you carry with you. It can be a real shock doing it the first time while out on a ride.