Of all the lists, only a handful try to allow groups to share in the process of creating useful lists online. For example, ListAfterList takes advantage of group features with something they call a WikiList. Here’s a sampling of the lists on their site.
Digalist is like Digg meets list service. Not only can you create and share your own lists that get ranked and rated but they allow you to collaborate with others on group lists. Adding the ability for the community to rate lists according to the value they provide is a good idea.
Listphile is my favorite list service that provides a social list feature. The look and feel is modern unlike the previous two services. I especially like the fact that it includes a RSS feed for any list that you create so groups can easily subscribe and follow the list as it changes and evolves. Here’s a sample of a group list I created for “Favorite Christmas Movies”
Tis the season to make lists so why not add social features to them? Since the web is all about collaboration these days, it makes a great deal of sense to make these lists more social. Look for many more list services to become more group aware.