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.
Pennywise - Cross-platform application to open any website or media in a floating window
Magnifixer - Magnifixer is a screen magnifier utility.
PiP for Mac - Always on top window preview similar to the popular windows only OnTopReplica
ZoomIt - Presentation utility for zooming and drawing on the screen.
Shopify - Shopify is a powerful ecommerce platform that includes everything you need to create an online store and sell online. Try it free for 14 days.