You don't need a autoblogging specific plugin. You can do just as good a job with a combination of a full-text rss service, a rss to post plugin, and rss feeds of other sites that are similar to the type of site you would like to make. And if you are worried about posting exact copies of other peoples articles you can use an article rewriting plugin. Here is an example of what I do: Let's say you want to make a gadget blog. Install the FeedWordpress plugin (It's free). Go to Gizmodo and grab their RSS Feed Url. Go to a RSS to Full Text Feed service (The one at this link is also free). Now enter in Gizmodo's RSS Feed URL and click Create Feed. After it's done you can copy the URL to that page into FeedWordpress as an RSS Feed. Now it will automatically take each of Gizmodo's post, grab the full article, and post it on your site. This will help get organic traffic and just using this technique no search engine has ever banned any of my sites. Now if you want to go a step farther you can get an article rewriting plugin which will make each of those post look original to search engines, which will greatly increase your SEO value. I wrote a little article about this at The Good, the Bad, and the Ugly of Article Rewriting! if you want to check it out.
I am using autoblogingg for a long time and its making money from amazon affiliate program. Feed wordpress plugin is not that enough to exploit the value of autoblog in affiliate niches. Wp-Robot is one of a kind plugin to use for autoblogging. I am happy with this. Thanks !
Oh yeah. I'm not saying that FeedWordpress is better then Wp-Robot or Autoblogged. I'm just saying it gets the job done and it's free, lol.