I read about another apparition on this really lovely website. Isn't that a reliable source for this page?
Probably not. Anybody could put up a website and write whatever they want on it. It might accidentally contain serious errors, or it could even be a hoax intended to embarrass people or to swindle prospective donors.
What kinds of sources are ideal?
The official websites and publications of newspapers and magazines, books published by universities or reputable publishers (not vanity press or self-publishing), and scholarly papers. Official statements by appropriate church officials are also often useful.
