Salesforce Getting started with Salesforce Installation or Setup
Example
The best way to get started with Salesforce is to get your own Developer Edition.
Developer Edition (often referred to as a "DE org") is a fully-featured development environment with limits on data and users. Developer Edition is where you can get familiar with the environment, try out stuff and mess around in Salesforce.com. Developer edition is an environment lets you instantly start developing, testing and deploying your app in the cloud.
