WriteNext - The writing application that boosts your writing. Increase focus and writing performance and reduce distractions by separating your creative writing from other activities. Let writing be the only activity you perform in the writing application.
E2Guardian - Web filtering solution
Writebox - Writebox is a simple and distraction-free text editor for Chrome and iPhone/iPad.
pfSense - pfSense is a free and open source firewall and router that also features unified threat management, load balancing, multi WAN, and more
Calmly Writer - Distraction-free text editor for Mac, Windows, Linux and ChromeOS.
CacheGuard-OS - CacheGuard is an enterprise grade Web Gateway solution offering Web Security & Optimization in the same box. Price starting at $99 per Year!