To begin, sign up for a new account at the link above. You'll need to allow popups for RefWorks to work properly.
For a series of short, introductory videos, they are on YouTube here.
With RefWorks, you can automatically import your citations with just the click of a button! Look for the "export" button, and choose RefWorks, and they will be added to your citation list.
Below is a very short video showing you how easy it is!
RefWorks also has Write-n-Cite, which is a plugin for Microsoft Word. It allows you to add citations to your paper as you write it, using any citation style you prefer, and easily add a "works cited" page at the end!