PNotes

PNotes is open source software for small notes. Pnotes organizes text notes into a structured notebook. Write a note, flag it or star it to work on the message later. Besides, there is an option to email a note if you plan to work on the go. PNotes is light-weight, flexible, skinnable manager of virtual notes on your desktop. It supports multiple languages individual note's settings, transparency and scheduling. Absolutely portable as well - no traces in registry.

KeepNote

Open Source Note Taking Application

KeepNote is a note taking application that works on Windows, Linux, and MacOS X. KeepNote allows you to store your class notes, TO-DO lists, research notes, journal entries, paper outlines, etc in a simple notebook hierarchy with rich-text formatting, images, and more. Using full-text search, you can retrieve any note for later reference.

OpenBravo POS - Open Source Point Of Sale

OpenBravo POS is the leading open source Point-of Sale application for the SMBs in the retail industry. With almost 10,000 installations per month, it is proven to be a reliable alternative to expensive POS software. Merchants can save time & money by deploying OpenBravo POS with the native planet Authorize.Net payment gateway module. It is designed for touch screens, supports ESC/POS ticket printers, customer displays and barcode scanners.

Floreant POS - Open Source Point Of Sale

Floreant POS is a platform independent Open Source Point-of-Sale application written in Java that greatly benefits Restaurant business – simplifying order management, automation of kitchen and keeping control of cash.