A couple of links to get you started

Googling, Binging, Yahooing - whatever you want to call it - "Chinas impact on the U.S." brought up these websites:

This is on about.com which is usually suspect so check the sources.

This is from a CNN blog from a couple of years ago. And it's on CNN so it's dumbed down. That's right: CNN is for dummies.

And this is from The Heritage Society. The Heritage Society is very Conservative.

Enjoy.