Ranker - Ranker goes far beyond Top 10 lists with deep rankings about everything, voted on by everyone.
Xibo - Digital Signage for Everyone!
Poll Everywhere - Audience response system that uses mobile phones, twitter, and the web. Responses are displayed in real-time on gorgeous charts in PowerPoint, Keynote, or web browser.
Kitcast Tv - Kitcast.tv digital signage software allows you to show your content on any screen using just Apple...
Demolistic - Demolistic is a list-building community. Create, edit, share, and discuss ranked lists.
Yodeck - Yodeck enables you to design and schedule your digital signage on Raspberry Pi easily from the web, using your computer, tablet or smartphone.