I have been playing around with a great web tool and mobile app for families.  Cozi is a fabulous family management tool.  With everything from Calendars to Shopping Lists to Meal Planning and To Do Lists, this tool allows your busy family to get in sync from home or anywhere.  I am especially impressed with the ease by which you can enter one-time and on-going calendar events.  The mobile app works with a variety of phones.  Check it out for yourself!