I've seen this one mentioned in several ebooks, but I haven't tried it yet. Might be what you're looking for. http://www.uniquearticlewizard.com
Why not use this article submission software you can make multiple different version of same article Different titles Different summaries Different resource box Then submit it to hundreds of article sites and newsgroups on autopilot no entering capathcas etc the software does one hundred percent of the work. for the price the program is great you could get three months of am or 120 submissions on isnare and the articles wont be spun for the same price you get unlimited articles and submissions plus quality links from newsgroups on Yahoo google msn
No it is not my product It is created by David Tang but I also run a website promotion business and have tried many of the alternatives I found this to be the best I use Isnare I use submit articles I did use Im submitter I did use article submitter pro I used David Watson two programs content wizard and article wizard None of them come close to APR If I'm going to recommend something its because I believe in it myself If you watch the videos on what it actually does you will quickly see why.
www.uniquarticlewizard.com is very good. It takes a little more work on your part, but the out come is hundreds of the same article that are written in your words and not just synonym replacements.