This Instructable is designed to show you how you can quickly sign up and share your own trips.
Step 1: Sign Up
When you go to signup, they ask for standard information, including an email address. They really only send you emails for notification purposes - no SPAM.
After you click "Create Account," they send you an email to verify that it is, in fact, you. Follow the instructions in the email to activate your account. Once you activate the account, BAM! you're in. You can go in and add information to your profile if you wish. It's helpful, since this is intended to be a social site. It also helps to give people an idea of your interests and experience level, since you are basically giving out free advice.
Step 2: Add a Trip
Add all your trip information on the "Details" tab. It is a lot of information, but if you go to the advanced search page, you'll see why they are trying to gather as much detail as possible.