Air Set is a free website that helps keep you organized. But it's not just an ordinary calendar. Stay with me until the end here and you'll soon see why.

http://www.airset.com
Upon login you can view your Personal Calendar (agenda view, day, week, month, etc). You can upload any files that you might like to download later from any computer (with an internet connection). You can upload photos into the 'album' and view your contacts as well. But that's not even the cool part.
What Air Set allows you to do is to create as many Calendars as you'd like, on the same website. I'll give you an example by telling you how I set mine up as a Manager.

I started off with my Personal Calendar which can only be viewed by me. Then I added another Calendar and named it 'Office' and invited the entire office (all 100 agents) to join. I had uploaded the office roster, posted class information, uploaded the monthly front desk schedule, and even added photos from a recent office BBQ. It was a terrific place for agents to log on and see what's going on in their office, and to download files, phone numbers and schedules. They could even download the photos that I had posted.
Next I added a Calendar for the Managers that were in my District (about 9 of them). We all had shared access to the information uploaded or shared in that Calendar.
Here's where I want to make things clear. When you add another Calendar and invite people to it, they CAN NOT see YOUR other Calendars. They CAN NOT be invited to YOUR Personal Calendar. They can only see the Calendar that you invited them to. So my office could only see the office Calendar, and the District Managers could only see the District Managers Calendar.
I also created Calendars for the Managers in the company, for my daughter (for her to input her work schedule) and for my Clients. So now I had at least 6 Calendars on the website. I am only able to view one Calendar at a time, but if I click on ALL, they all merge together into ONE Calendar!
The tabs of EACH Calendar show up at the top of the Calendar, and they are all different colors. What's really cool is that when you are looking at ALL of your Calendars at once, the items for each individual Calendar are the same as the corresponding tab. My Personal Tab is purple, the office is in Blue, clients are green, etc. So when you are viewing ALL Calendars at once, they will have all of the different colors.
http://www.airset.com
More to come...