Groouply - Track keywords on Facebook groups
mention - Media monitoring made easy with Mention. Create alerts on your name, brand, competitors and be informed in real-time of any mention on the web and social networks
UpvoteTracker - Track the upvote history of Reddit and HN posts
HNwatcher - Track keywords and users on Hacker News
Fresh Web Explorer - Far Superior Alternative to Google Alerts
Meltwater - Media monitoring, social media monitoring & media Intelligence products & tools help companies grow and build brands by listening, understanding, engaging and benchmarking their customers, markets and social business communities.