To know more about nanotechnology the following lists of sites will help you.Some sites contains great information some less.You can search on google by using the keyword Nanotechnology Google will shows a list of keywords related to nanotechnolgy.
To search for PDF files type the keyword Nanotechnology filetype:pdf in google.Then related pdf files willbe displayed this will save time.For more us google Advanced Search option. You can also use Google scholar.
To know more about INVITED TALKS & PROGRAMS ORGANISED ,IIT madras physics research-ramp site will help. This site will provide latest information about upcoming seminars,Workshops and CONFERENCEs. You don’t want to visit a hundred site to know about upcoming nanotechnology events. Nanoguru also provides an events section which gave you latest information about upcoming seminars,Workshops and conferences etc.You can download brochers,registration form from it or you can go to the corresponding pages easily.So don’t forget to check it regularly.
Nanotechnology – Wikipedia
Rice University Center for Nanoscale Science and Technology
National Nanotechnology Initiative
Nanotechnology Sites on the WWW