- Torino O, a blog dedicated to asteroids and the hazard they represent for life in Earth (Spanish only).
- La Hora Última, a blog to analyze Judgment Day Prophecies and other popular affirmations with astronomical inaccuracies (Spanish only).
- 2012: La Hora Última, a whole site to analyze, from a racionalist point of view, the prophecies for the year 2012 attributed to the Mayan people. (Spanish only)
- Papeles Desparramados, a collection of writings, without too much order, published only in the Web (Spanish only).
