FWIW, that article has very little more information than you could find on bookshelves for the past 20 years. http://www.amazon.com/Smart-Drugs-Nutrients-Intelligence-Neu...

Besides Piracetam having become only one in a class of nootropics, you can find the same information in that book.

There used to be a large subculture around nootropics on the Net, but most of the discussions were based on anectdotal evidence. It seems not much have changed since then.