Cozi is a FREE web-based Personal Information Management application. It's not super sophisticated, like some PIMs. In fact, it more-or-less an appointment calendar and grocery shopping list manager.
It has a family account setting so that you can setup schedules and reminders that can be accessed by your family members. The website provides helpful tips for around the house and in the kitchen in their blog.
I have been a member for several months and have only had occasion to use it one or twice. I found that Reminder Fox takes care of my calendar needs and I am still looking for the perfect meal planning/shopping guide (FREE, that is).
I give it 3 stars instead of 2 because it is a nice site. They do not spam you to death and I think that it has, for the right people, a purpose.
I like this site because it is all about family and everything that goes into it. Calendars, meal planning, kids, checklists, and so much more. I get ideas for organizing our lives as well as snacks and meals. I still go to Pinterest for certain specific projects, but this site has everything all in one.