Todo by Appigo - What sets Todo Cloud apart from your run-of-the-mill to-do and task-list apps is that it is straight-up powerful. It's time to get things done.
The Linux Experiment - Making the Linux desktop accessible: no techno lingo, no command line voodoo, no super technical content.
Laverna - Laverna is a JavaScript note taking application with Markdown editor and encryption support.
Level1Linux - The Level1Techs team is very knowledgeable while stilling being sociable as content creators. Wendell in-particular is often the feature figure of the Level1Linux content.
Notezilla - Colorful & powerful sticky notes app for Windows & Phones.
Bryan Lunduke - Bryan Lunduke is a former Software Developer, former Software Tester, Vice President, former Linux marketing guy, former writer for Network World, former openSUSE Board Member, and a long forum Linux discussion host on YouTube.