Charles Buddeke

Brain.fm for iOS — Music for the brain to improve focus, meditation & sleep

Effective Thinking — Become more successful through better thinking

Website Grader — Grade your website's strengths and weaknesses in seconds.

Brain.fm — Music for the brain to improve focus, meditation & sleep

Art of Learning — An inner journey to optimal performance

The Twelve Caesars — Suetonius' biography of the Roman elite rulers

Benjamin Franklin: An American Life — Entrepreneurship and electric kites in colonial times

Titan: The Life of John D. Rockefeller, Sr. — Great biography on a ruthless early capitalist. Unvarnished.