Nexus - Ramez Naam. On a nano drug that allows mind-melding.

Diamond Age - Neal Stephenson. A girl adventuring in a nanotechnology-defined future.

Radical Abundance, Engines of Creation, Nano-solutions for the 21st Century - Eric Drexler. Various nanotechnology-focused books that inspired much early work on nanotechnology. 

What Does The Future Hold For Molecular Machines? | James Cooper, Nanotechnology Roadmap, Nanotech Tree 1, Nanotechtree 2 - Foresight Institute. Concepts and technology trees to advance toward atomically precise manufacturing.

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