The self-published book is the joke of the literary world: whether one goes to a printer and has the books made up with one's own imprint, or goes to an "author-subsidized" publisher known in the trade as a "vanity press," doesn't matter: It's easy to tell a real book from the pretenders. […] It's harder to tell with software. A lot of software is published by small startups. Some of these would certainly qualify as vanity press jobs in the book trade, others wouldn't. But there's a far higher number of successes among small software publishers than there are in the usual vanity press book.