Robin Good's insight:
Uberflip is a new web publishing tool that allows a company to easily create a social hub populated with the most relevant content coming from their main media properties, including blogs, RSS feeds, social media channels, images and videos, presentations and PDF documents.
Uberflip publishing metaphor is the "hub" in which, similarly to Rebelmouse and Pressly you can create multiple channels where you either aggregate or curate theme-specific content.
Among Uberflip unique features there is the ability to import and convert PDF documents into editable flipbooks, an array of widgets that can be added to integrate more functionalities (e.g.: Disqus comments) and a call-to-action feature allowing you to integrate customizable and elegant subscription boxes that directly connect to your newsletter provider (e.g.: Malchimp).
Check my test site to get an idea of what you can do with it: http://robingood.uberflip.com/h/
My comment: Compared to Rebelmouse, Pressly, Uberflip is a tough contender. Its key strengths are the elegant and clean output design, which displays excellently also on tablets and smartphones and the breadth of features for curating and collecting content (e.g.: custom collections). Uberflip is also the only tool of this kind that integrates a PDF to flipbook conversion engine, allowing you to integrate any company PDF into one or more collections in a beautiful format to view.
The Basic version, which allows for one hub with multiple channels, one custom collection and one CTA costs $49.95/month. Higher priced versions at 199 and 499/mo allow for using your custom domain, more collections, CTAs and additional features including analytics and other features.
Pricing info: http://www.uberflip.com/pricing
Free 14-day trial.
Ty it out now: http://www.uberflip.com/
My test site: http://robigood.uberflip.com