Listography - Create your lists, preserve your story, and stay inspired.
PenPal World - Connect with people all over the world
List Challenges - Earn points for your life experiences. Find lists that interest you, and mark off what you've done.
InterPals - InterPals is a friendly community of over 5 million friends, language learners, travelers and penpals.
Bucketlist.org - Log and catalog all the stuff you want to accomplish before you expire.
Polyglot Club - Polyglot Club is a new social network for language learners.