Malta Nazi Party  According to Wikipedias reliable sources policy  Posts to bulletin boards Usenet and wikis or messages left on blogs should not be used as sources This is in part because we have no way of knowing who has written or posted them and in part because there is no editorial oversight or thirdparty factchecking   A selfpublished source is a published source that has not been subject to any form of independent factchecking or where no one stands between the writer and the act of publication It includes personal websites and books published by vanity presses Anyone can create a website or pay to have a book published and then claim to be an expert in a certain field For that reason selfpublished books personal websites and blogs are largely not acceptable as sources