Awario is a social media monitoring tool - a real-time search engine of sorts. It lets you monitor mentions of your brand, competitors, campaigns, or anything else across social media and the web at large, and measure how the word-of-mouth around your product grows over time.
Recite Social is a tool for learning when and where social media posts are quoted in news stories. Discover trends and influencers by seeing which posts are making headlines. Search for your own @username and see if you've been quoted in any stories. Sign up for an account and get email alerts when accounts you follow are quoted.