- Regional Internet Registry (RIR) Map
- Sanitized IEEE OUI Data (oui.txt)
- NeDi (network discovery) project
- Hurricane Electric BGP Toolkit
- Oskar Andreasson's Iptables Tutorial
- Postfix Dedicated Transport Howto
- Pflogsumm Metalog Howto
- Command line email file attachment bash script
- Real-time on-screen device resolution and orientation information
- XML-Sitemaps Standalone Sitemap Generator Modernizer Re-skin
- Retail Discount Calculator - Web application for calculating ad hoc retail sales discounts.
- Gross Profit Margin Calculator - Web application for calculating real-time Gross Profit Margin sales figures on desktop computers and mobile devices to help keep your profit margin in check.