Copyediting
Copyediting is the part of the editing process in which a copy is checked for grammatical, informational, and stylistic inaccuracies. This is done to ensure that the text is free of errors, and carries a consistent voice, prior to typesetting, printing, and publishing.
Proofreading
Proofreading is a part of the editing process where typeset proofs are checked for errors. Oftentimes this process uses comparitive methods with old copy and new copy.
Copywriting
Copywriting is creating the actual content for any given work of promotional material. This includes making prose, lists, analyses, and any other form of content where information needs to be delivered to a specific audience.
Web Editing
Web editing is the creation and management of digital content on websites, specifically in regard to front-end matters like user experience and website navigation.
Alfredo Gerardin 