Wikipedia: Anaxagoras - A short overview of the life, legacy and ideas of this ancient Greek thinker. - http://en.wikipedia.org/wiki/Anaxagoras/
Life of Anaxagoras - Section on this ancient thinker from the Lives of the Philosophers by Diogenes Laertius, as translated by C.D. Yonge. - http://classicpersuasion.org/pw/diogenes/dlanaxagoras.htm
Internet Encyclopedia of Philosophy: Anaxagoras - Article on the Greek philosopher responsible for giving philosophy a home at Athens and the first philosopher to introduce a spiritual principle which gives matter life and form. - http://www.utm.edu/research/iep/a/anaxagor.htm
Anaxagoras's Metaphysics - Paper on the Anaxagorean idea of there being something of everything in everything by Gareth B. Matthews. - http://www.nottingham.ac.uk/journals/analysis/preprints/MATTHEWS.html
Anaxagoras of Clazomenae - Two different sets of notes from a lecture at the University of Toronto. Explores the relation of this thinker to the thought of his time and ours. - http://www.chass.utoronto.ca/~dhutchin/s26a.htm
MacTutor History of Mathematics: Anaxagoras - Article discussing the astronomical ideas of this ancient thinker, with links to articles on related thinkers. - http://www-groups.dcs.st-and.ac.uk/~history/Mathematicians/Anaxagoras.html
Anaxagoras - Section from Arthur Fairbanks' The First Philosophers of Greece, containing Fairbanks' commentary and translation of the fragments of Anaxagoras. - http://history.hanover.edu/texts/presoc/anaxagor.htm