This is my favorite site for learning how to make new things.
DIY.org
Learn how to do anything! From computer hacking to camping, DIY.org will show you how, though step-by-step videos.
Makezine.com
This is a pretty advanced site. I would recommend this for the kids who think they are really serious about taking their skills to the next level...
Sylvia's Super-Awesome Maker Show! This girl is amazing. She can show you how to make some pretty cool stuff.
Khan Academy This is a great website for students to learn at their own pace. If you are a quick learner, you can literally learn things that high schoolers are learning! You will need a username & password from Mr. Larson.
TED Talks If you have never seen a TED talk, they are amazing. These are great examples of innovators.