Attached Link: http://www.newnovelist.com/overview.html

You can get a taste for NewNovelist from the website. I can't seem to find the email now, but I believe DramaticaPro has developed a software that is similar to Storylines and what WriteItNow is developing. You might find a real corkboard with notecards will do the trick, and not cost as much (depends on how focused you are on tech solutions). I know one writer who uses TreePad to organize her stories. It isn't strictly a writer's tool, but can be use for that purpose. Any software can probably help you with organizing your material; no software will guarantee you success.