Quizterra is a simple & functional, absolutely free quiz-making platform. The unique feature is that you can insert your custom ads before the quiz results and give your articles additional monetization.
Playbuzz - The leading authoring & distribution platform for interactive stories. Use our suite of storytelling tools to create engaging editorial & commercial content.
Lotame - Make your data actionable, learn about your most valuable customers, improve ROI by targeting the right audience and increase relevance across screens.
Zembula - Zembula enables marketers to create and embed interactive experiences that are optimized for conversion.
Adobe Audience Manager - Adobe Audience Manager is a data management platform that integrates online and offline data to deliver a unified view of all your audiences
4screens - 4screens is an interactive content creation platform enabling marketers to create engaging interactive content and social experiences.
Google Audience Center - 3 votes and 6 comments so far on Reddit