Watch2Gether - Watch2Gether is an app that allows multiple people to watch the same content simultaneously and interact with each other while watching.
Talkwalker Alerts - Better than Google Alerts
Metastream - Watch streaming media with friends
Google Alerts - Google Alerts will send you email or RSS updates of the latest relevant Google results (web, news...
StreamParty - StreamParty is a watch communiry, that allows you to watch video streams in sync with the people you care about, on multiple services.
WordHoot! - WordHoot is a word guessing game inspired by Wordle.