Auto blogging software's are not worth in the long run..Google is cracking the whip on these things ...build a sustainable online business
You can do some semi-auto blogging by emailing your blog the content you want to post. And spend some time each day on your subject.
There are no free autoblogging software. You need to purchase it or else search for cracked version of the software. You can get more links.
Cracked versions usually are tampered with and will either a) provide a security breach into your blog or b) discover adsense and clickbank ids and replace them with the software's cracker's data.
There is a certain plugin to do this, you may check on goolge. But for me i choose the original content and the unique content.