So TED has a lot of talks some better than others but all are inspiring, a quick look through the talks offers some really good bits of information.
TED is all about ideas so not all of these talks are grounded in complete reality. They are ideas of what our future could be or in some cases how we can look at the present differently. As such there is a list of talks on materials that are well worth a watch.
Smart materials have a really good introduction from Catarina Mota. She goes over the basics and shows some new materials and it is one of my favorite talks.
For building materials check out the groups below. They all have a great point and show how we can change what is expected in the use of materials.