Blog Creation / link building software

Hey guys, its been awhile since Ive been here. I am looking for something particular. Is there software (okay I know there is, but readily available) that will create blogs on tons of blog sites like wordpress.com, and random ones like baiganchoka.org, and create blog posts or at least backlinks to your websites? I know there IS software that can do this, there is no way some people are doing this with 300-3000 blogs manually (and for dirt cheap). I just am not up to par with blackhat software.

If you want an example of a site that offers this, let me know ill post it (in case you dont believe its possible!)

But Im sure most of you understand what Im asking.

Well im not sure if im right but Link Farm Evolution can do atleast wordpress MU blogs, post on them, scrape articles from diff places. not sure about some custom CMS tho..

I think this is exactly what I am looking for, after looking at it. If not, its looks good enough. Thank you!