From the website:
BrightPages makes content-centric engagement a breeze.
Liberate your insights. Don’t trap your great content inside static PDFs! Create your document, plan, or report with BrightPages, a publishing platform that brings your content to life.
Make it bright. Use BrightPages to summarize text, create interactive infographics, embed rich multimedia experiences, add before-and-after maps, play with scenarios and trade-offs – anything that will help your audience understand and evaluate your content.
Get feedback. Sit back and watch your audience explore, play, respond, comment or vote. When you’re ready, download and analyze the results.
As of April 2015, the tool doesn’t appear to be available anymore. An archived version of the product page can be found on Archive.org.