Basecamp is a web-based project management tool develop by 37Signals and launched in 2004.
I was really amazed with this program while making this tutorial because it will really helps a lot of team to simplify their planning activities. It will really saves time and energy of everyone involved in the project. Wherever and whenever are the members of the team they can still manage to plan the event at the same time.
How cool is that!
So try to use this program. Absolutely commendable!