Contains broad information about twins, including a list of frequently asked questions, freebies and discounts for twins, advice for parents of twins,andnetworking resources.

Information on membership, conventions, correspondence, and photo gallery.

Online community for twins. Presents a compilation of stories as well as related links and resources.

Learn about fraternal and identical twins. Find suggested names for twins and celebrity twins.

Serving in support of twins who suffer from the loss of companionship of their twin through death or estrangement.

Official festival site provides registration details, event schedules, images, and a message board.

Information on twins including forums, essays, book reviews, shopping, and support.

Provides contests for twins, a twin casting agency, reunions of twins separated at birth, and interactive message boards.