At this time, the main tool to reach backers for your ICO are the whitepaper and the discussion platforms to answer questions that arise from potential backers. These two aspects have been disconnected, usually with a PDF version of the whitepaper and a comment board on a discussion site, but Mattervest is changing that model. The Mattervest site hosts interactive whitepapers, where users can comment and ask questions on each section of the document right inside of the whitepaper. Check it out at http://mattervest.com/evermarkets and http://mattervest.com/digipulse