The Design of Everyday Things - A timeless book, The Design of Everyday Things explores the fundamentalprinciples behind all design, and how to understand the psychology behind how we use things, and why they frustrate us.
DYNO Mapper - Create Sitemaps with the DYNO Mapper Visual Sitemap Generator.
Coursera - "Compilers" by Stanford - The course explores how high-level languages are compiled to low-level assembly.
A1 Sitemap Generator - A1 Sitemap Generator has been in active development and sold since 2005.
CS50x - HarvardX (edX) - An introduction to the intellectual enterprises of computer science and the art of programming.
Site Visualizer Professional - Crawl website, visualize pages and links, analyze the structure of a website, build SEO reports with SQL