vdNote - Share noteworthy moments from YouTube videos.
MagicPad - Free, simple, and private, offline text encryption suite.
Hubub - Host better conversations around video.
Signal - Fast, simple & secure messaging. Privacy that fits in your pocket.
Bookmark It - Create awesome notes on YouTube videos
Blur - Blur is a software application available for both Google Chrome and your smartphone. It's developed by Abine, an online privacy company trusted by more than twenty million people. Read more about Blur.