1. A method of accepting and exposing user-created lists of items, comprising: providing, in association with an electronic catalog of items, a user interface that provides functionality for users to interactively generate lists of items, and to submit the lists for viewing by other users; receiving user-generated lists of items, said user-generated lists generated and submitted by users via the user interface; identifying a plurality of items associated with an interest of the user, the plurality of items identified based on one or more actions performed by the user in connection with items represented in the electronic catalog; selecting, from the received user-generated lists, a set of one or more user-generated lists that are related to the plurality of items associated with the interest of the user; and causing the set of one or more user-generated lists of items to be suggested to the user; said method performed by one or more computers of an interactive system.