• The Gauquelin planetary effects. This includes the extensive research of Michel Gauquelin, Francoise Gauquelin and more recent work by Suitbert Ertel, Arno Müller and others.
• Some implications of the "Gauquelin planetary effects".
  • Science, Astrology and the Gauquelin Planetary Effects.
  • The Rise and Fall of Eminence in Semantic Space
• The "Mars effect" controversy:
  • A brief chronology of the controversy
  • A review of The 'Mars Effect', A French Test of Over 1,000 Sports Champions, a skeptic book outlining a study of the Mars effect
  • Information about The Tenacious Mars Effect, a book co-authored by Suitbert Ertel and Kenneth Irving, which gives the most complete history of Gauquelin's work on the Mars-effect for sports champions, the controversy over it caused through efforts by skeptic groups to debunk it and a thorough analysis of the data and methods of those groups.
  • An expanded version of an article by Ertel and Irving that appeared in the Skeptical Inquirer.
• Links to other sites of interest
• The Gauquelin Data online!
• Software for planetary research