That's model railroading, of course, in all its forms, including scale model railroading, toy train operating and collecting, and garden railroading. The World's Greatest Hobby campaign is a hobby-wide effort to attract more participation and to help beginning hobbyists in getting started.

If you're new to model railroading, you can visit the Web site at greatesthobby.com for all kinds of help. You'll find answers to basic questions, a guide to hobby resources, and an assistance directory where you can find hobby shops and model railroad clubs that want to help you get going in the World's Greatest Hobby.

If you're already involved in this wonderful pastime and would like to help spread the word,greatesthobby.com has information for you too. Visit the site to can learn how to participate as a volunteer ambassador, through your model railroad club, or as a World's Greatest Hobby retailer.

Click here to visit the World's Greatest Hobby website.