http://www.nanotechnology.surrey.ac.uk/home
http://en.wikipedia.org/wiki/Nanotechnology
http://www.iop.org/EJ/journal/Nano
http://www.nanotech-now.com/
http://www.crnano.org/whatis.htm

Book´s references :
1.-Abdelwahed W, Degobert G, Stainmesse S, Fessi H, (2006). "Freeze-drying of nanoparticles: Formulation, process and storage considerations". Advanced Drug Delivery Reviews. 58 (15): 1688-1713.
2.-Kahn, Jennifer (2006). "Nanotechnology". National Geographic 2006 (June): 98-119.