This website focuses all on one branch of nanotechnology: nanobots. The website lists the wide variety of jobs nanobots can do, from cleaning entire kitchens while no one is home to being injected in the bloodstream to kill cancer cells before they form a tumor. This website seems to be very official and is entirely dedicated to spreading the knowledge of every part of nanotechnology. I recommend everyone in nanotechnology to look over this website, because it has such a vast array of knowledge on the topic.
This is another page about how nanotechnology can change medicine forever. There is a section about how we can treat a tumor and be done with it in a short period of time because of little medications. This page also gives great new, interesting facts.