Completely by accident, I stumbled on Airset. I'm not one to recommend products, but I love this one. This one has all the available applications and features (including synchronize with Outlook calendar and contacts) that you need to get organized and more, much more, all in one place. And it's free!
Airset's power is its "group" foundation. (My main page is a 'group' of one, me.) Along the top are tabs for each of the groups I created. I have one called "Family" and I invited my son to join it. He joined by creating his own Airset account that shows his personal main page and the group "Families" that I created. I now can share with him via the "Families" group anything I have in my personal group, and visa versa. Contacts, calendar events, to-do lists, links, photos, music, files, blog - anything I can think of. The messaging feature allows you to send messages to any member of any group or all the members at once. Airset emails me my schedule every day, and it even includes the weather forecast. If I am still unorganized, it's not Airset's fault!
I created another group called "Site Projects" and invited a client I did two Web sites for. This gives her an invaluable tool to upload new photos and content for the sites and enter into the calendar when she needs them done. She can also use the To-Do list, set a due date, and Airset will remind me daily what I need to do. When it's done, I check it off, and that's it! If you want to create a public group, there is an option to create a Web page that can include a "join now" with a complete group description.
The best part of Airset is that there are no ads besides Airset tips. I get a ton of spam email and see more than enough ads online and on TV, so this is a nice, nice caveat. I'll enjoy it while it lasts.
Let me know what you think! airset.com