Instant Article Wizard
Instant Article Wizard will take a set of keywords that you provide and help you identify subtopics around which to create a top-quality article. Once you've selected your topic and subtopics, Instant Article Wizard will do all of your research for you! You are taken step-by-step through the selection of research ideas for your introduction paragraphs, each of the subtopic paragraphs, and your concluding paragraphs.
Cost: $77 a year
More information: http://instantarticlewizard.com/