Notepad++ - a really excellent code editor (free)

Learn Web Code with Brad Schiff

Wikimedia Commons Freely Usable Media

CSS Reference

Complete CSS Cheat Sheet

HTML5/CSS All in One for Dummies

HTML5 AND CSS3 all-in-one for Dummies

Layout Land with Jen Simmons

Mobile Phone Emulator for testing responsive web sites

Can I Use?

Unsplash - Photos for Everyone

Resizeimage.net

CSSmatic

Quakit -Templates

w3schools The World's Largest Web Developer Site

International Accent Marks- HTML Codes