What are some alternatives?
When comparing Newslines and Hvper, you can also consider the following products
Timeline - Timeline is a cross-platform application for displaying and navigating events on a timeline.
Google News - Comprehensive up-to-date news coverage, aggregated from sources all over the world by Google News.
Aeon Timeline - "The timeline tool for creative thinking. Capture, create and explore ideas."
News360 - News360 is a smart news app for your phone or tablet that learns what you like and brings you stories from across the web.
Sutori - Sutori is the easiest way to create an interactive story collaboratively.
Digg - Digg delivers the most interesting and talked-about stories on the Web right now.