W3schools is a great website that shows you how to code for HTML in an easier way. By giving you examples and allowing you to edit the code used, you discover in your own way how to code for HTML in your own projects.
Cornell University's page for principles of design gives you a rundown on art, design, and visual thinking. They make each principle easy to see by showing you specific examples that utilize some of the principles of design.
Web source is a professional guide to designing and developing websites. This particular page links to tips that can help assemble a working HTML website!
Photoshop Essentials is a site that gives tutorials and training for Adobe Photoshop. This site can show you ways to add a personal touch to all of your photos.