Ghostwriting is a type of content creation work (both online and offline), which requires the creation of content pieces (articles, ebooks, biographies and other types of impersonal writing) for the employers. In a more simple way, I can state it the way I understand it, ghostwriters work directly for the employer and with their writing services they sell full rights for their work and agree that it may be attributed to other person, usually to the employer.
It might sound weird at first but this type content is in a big demand on contemporary market, so skilled writers should have no problem finding ghostwriting work thought numerous sites, which I will list or by starting their own portfolio and recruiting clients offline.
Just a quick note about structure, for those, who are looking just for resources for writing jobs, I will include them closer to the top of the article, i.e. the practical part will come before theoretical. Please scroll down first, if you are looking for tips and ideas on securing freelance writing jobs, then practical information can be found below and in the follow up posts, then links to which will be added later.