Four Infopeople staff, fondly referred to as "peeps," (Eileen, Gail, Gini and Linda) have been using a FREE, easy-to-use and very practical Web 2.0 online "to do" shared list service, Ta-da Lists.
You can use the website to:
• make one list to keep track of things you personally need to get done
• make multiple lists you can share with other people (co-workers, friends, family)
• subscribe to your lists in RSS