Facebook's $19 billion acquisition of cross-platform messaging service WhatsApp was obviously a boon for WhatsApp's founders, employees and investors, but it also proved to be a good thing for several of WhatsApp's biggest competitors.
The focus of Gravity Rock Solid Recommendations is to help its business clients offer personalized recommendations to their customers. Their clients funnel lots of content, like video streaming sites, dating sites, Groupon imitators, classified sites and ad networks to consumers. The Gravity R&D API uses events to track user interactions. From there they import an item catalog to build user profiles to create the individualized recommendations.