Henry Sidgwick - Includes links to book texts, articles, letters, encyclopedia entries, reviews, and informational sites relating to the philosopher. - http://utilitarian.net/sidgwick/
Philosopher of the Month: Henry Sidgwick - A short article critiquing existing scholarship on Sidgwick and his legacy. By Bart Schultz. - http://www.philosophers.co.uk/cafe/phil_jul2001.htm
Utilitarianism: Henry Sidgwick - A short extract from The Penguin Dictionary of Philosophy. - http://www.utilitarianism.net/sidgwick.htm
Sidgwick on Kant - An article which discusses Sidgwick's debt to Kant. - http://www.bun.kyoto-u.ac.jp/~suchii/sidg.on.kant.html