We all have a subject we are passionate about. It might be blues music or junior league soccer, a movie star or a football team.

The web lets us build sites that provide information to others with similar interests, but building a site and keeping it up to date is a time consuming process. SmartCal makes it easy to organize events and information pertaining to almost anything and publish it for all to see.

Anyone can subscribe today to the calendar you create and publish, and then they can merge it with other calendars to create custom views of the world. Soap opera air times and NFL schedules may not seem like an obvious combination to many, but someone will think it's the answer to their prayers.

Furthermore, for any particular event, you can send out invitations that are open to anyone and everyone. Then you can sit back and watch who is planning to show up.