auto-blogging tool can serve different purposes. of course you can make money right from the blog itself, but most of the time, people are using the autoblogging blog network for backlinks generations. you can get higher pr by having enormous amount of backlinks to your money-making sites.

having said that, the blogs prone to spam as well. but to me, that is all depend on how do you plan to use them. at least, you can monetize all those pages by selling textlinks in your blogs...

another good passive income...