Do you want to learn how to code? One of the best websites to learn all aspects of web development is www.w3schools.com
This was one of my favorite sites when I began learning to code. If you want to learn from scratch or just looking for a snippet, they can help. There is also a “Try it yourself” link on most lessons which allows you to test and manipulate code.
For children, I really like code.org. They offer free lesson for all ages utilizing familiar themes like Angry Birds which make it more appealing for children. The ease and clarity of the material make it a good option for all ages.
Khan Academy also offers an array of technology classes for free. There are many free and inexpensive courses online for professional certification as well. Check out a couple and see if you find something interesting.