YouTube Ad Blocker: Do you hate the ad that automatically plays before a YouTube video? This is one of my favorite extensions! Install it and forget about it. It automatically blocks ads and banners when you play YouTube videos, even if you have the video embedded on another site.
Screencastify: a tool that can use your webcam (if desired) and can capture what you do on your computer screen. Can also use the drawing tools to write on websites with recording. Links with your Google account. Videos will be saved to Google drive and are very easy to share to YouTube channel.
Keep: This is part of the Google suite. It's an app, extension and website (the trifecta!) It also links with your Gmail and Google calendar. It's like digital sticky notes that follow you around. You can collaborate and share your notes. You can save almost anything and organize notes with labels.
Kami: Click the extension to immediatly open Kami for all your annotating needs.