1. Make sure you have at least one email address registered with the WDW site (many have several). Check "I want to receive offers and news from Disney"
2. Order the WDW Planning DVD
3. Log in to the WDW site and plan a few vacation options. Save them for later.
4. If you get the survey when you leave, answer "not the value I was looking for"
5. Show interest in all the emails you get sent.
6. After a few days, go back into the WDW site and change some of the options in your saved vacations, delete one, and then create a new one.
7. If that doesn't work in a month or so, give up all hope
8. Repeat until it works.
Good luck!