YouDict - YouTube dictionary to search words, expressions & names
Syften - Better social media keyword alerts
vdNote - Share noteworthy moments from YouTube videos.
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
Sieve - Easy sorting, filtering and pagination for .NET core
Google Alerts - Google Alerts will send you email or RSS updates of the latest relevant Google results (web, news...