In this module, you create a Developer Edition Account that provides you with a full-featured but isolated Salesforce environment to perform the exercises in this tutorial.
Even if you already signed up for a Developer Edition account, it is strongly recommended that you sign up for a new Developer Edition account for this tutorial. Some of the steps in this tutorial may break some of the work you already did with your existing account.
Open a browser and access the following URL: http://developer.salesforce.com/signup
Fill in the signup form:
Check your email. You will receive an activation email for your Developer Edition Account.
Click the link in the activation email. Enter your new password information, and click Save.