Salestools - Monitor your Linkedin newsfeed for keywords to obtain leads.
Lotame - Make your data actionable, learn about your most valuable customers, improve ROI by targeting the right audience and increase relevance across screens.
Cato - Instant Spotlight-like search for your web browser.
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
PredictLeads - PredictLeads helps uncover sales triggers like B2B inside sales & personalized marketing, sales triggers, sales enablement.
Google Audience Center - 3 votes and 6 comments so far on Reddit