Vabotu - More than slack. More than Trello. FREE.
Virtual Magnifying Glass - Virtual Magnifying Glass, a free, open source, screen magnification program for Windows, Linux, FreeBSD and Mac OS X. Free full version download and instructions for use.
Do - Do helps you run productive meetings. Do work you love.
Magnifixer - Magnifixer is a screen magnifier utility.
Kurator - The premier Chrome extension for savvy researchers and publishers alike. Curate your interest and publish to your website, newsletter and social media sites directly from the browser.
ZoomIt - Presentation utility for zooming and drawing on the screen.