Talkwalker Alerts - Better than Google Alerts
Startup Stash - A curated directory of 400 resources & tools for startups
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
The Influencer Marketing Stack - Free resources to launch a killer campaign
Mentioned By - Learn when your site is mentioned by other sites for free
Makerbook - A directory of the best free resources for creatives