This is a page where you can find some online web design resources that I have found and enjoyed.
Kongregate Labs "Shootorials"
This is the best flash game creation tutorial I have ever seen. It will teach you how to make a side scrolling shooter game in flash using actionscript 2.0. There is also a section for using/converting to AS3.0 if that's what you're in to. I used this tutorial for my final project in web based software last semester. All the coding in actionscript can get complicated, but I had lot's of fun with it in the end. My project can be found here: Project Nebula