Nine Hundred Grandmothers, by R.A. Lafferty (out of print except for "The Books of Sand") Last and First Men, by Olaf Stapledon, free at http://www.feedbooks.com/book/2028/last-and-first-men Accelerando, by Charles Stross, free at http://www.antipope.org/charlie/blog-static/fiction/accelera... (http://www.antipope.org/charlie/blog-static/fiction/accelerando/accelerando.html) The Doubter's Companion, by John Ralston Saul, http://www.amazon.com/The-Doubters-Companion-Dictionary-Aggr... (http://www.amazon.com/The-Doubters-Companion-Dictionary-Aggressive/dp/0743236602)
Also recommended in this reply