FeedWind - FeedWind is the world's leading RSS widget, Facebook widget and Google Calendar widget - works on any website and is fully customizable
SocialPilot - SocialPilot is an app designed to help businesses and professionals with social media marketing.
Feedly - The content you need to accelerate your research, marketing, and sales.
Fomo - Fomo turns your site into the online equivalent of a busy store
Superfeedr - Real-time feed API - RSS and Atom over PubSubHubbub and XMPP. Superfeedr pushes RSS feeds in real-time for both publishers and subscribers, with open protocols and APIs.
Buzzstream - Build Relationships. Build Buzz. Web-based software that helps the world’s best marketers promote their products, services and content.