CAMERAS, EDITING
There are many web-sites that give advice and instruction about cameras and the editing of images. However, they are not all useful, and it can be hard to separate the wheat from the chaff. Here are some sites that people have found useful (click on the name of a site to go to their pages):
Cambridge in Colour - A learning community for photographers. This is a large web-site with good tutorials about understanding and using your camera, editing and post-processing, colour management, printing, images styles, etc. Highly recommended.
Digital Photography School. A very wide-ranging site, with literally thousands of articles about all aspects of photography - cameras, tripods, camera bags, post-processing - you name it!
Digicam Guides. Another wide-ranging web-site, which is particularly helpful in defining basic terminology, and also contains useful tips about taking better photos. In terms of equipment, the web-site looks rather outdated - for example, it talks about 128 MB memory cards, which represents something like 100-fold less storage than what people typically use in 2018. However, that doesn't prevent it being a useful site.
Steve's Digicams. This contains lots of reviews and other technical information about digital cameras. New reviews are constantly being added.
Digital Photography Review. Large web-site presenting reviews of still and video cameras, printers, phones, etc. Continually updated.
Luminous Landscape. A large web-site advertising itself as the "the photographer's knowledge resource". Founded by the late Michael Reichmann, it contains an enormous variety of interesting articles and tutorials about all aspects of photography. To access most of the material on the site, you have to subscribe, at a cost of $1 per month, but this seems a modest price for the amount of useful information you can get.