buying domains and parking them

Hi
I have heard so many people talk about how easy it is to make money from buying and parking pages. I don't really see how it works or if it works at all. I would like to hear if any of you guys have tried this and what you think about it.

Domain parking works when you have a domain that gets type-in traffic. That means Joe InternetUser types in yourdomain.com and goes to your parked page. Your parked page will have a list of search topics related to yourdomain.com. If Joe clicks on one of those topics, then clicks on through to PageA, PageA will pay for the click-through. Hence the term pay-per-click/ppc.
The best places to park your domains are Fabulous, Sedo, and DomainSponsor. Basically, you give them a list of domains in your portfolio you want to park, and they do the rest for free. If your domains are good ones with people typing em in, they make money, and you make money.
I've made enough money this way to say that it's definitely worthwhile IF you have a significant domain portfolio. If you just have a handful of names, don't bother.
I hope this helps.

-David

Yes, Sedo are pretty good.

Is sedo only type in traffic?