Lo siguiente es un extracto de contenido de la siguiente URL:
http://parkquick.com/index.php?option=com_frontpage&Itemid=1

Para empezar:

If you have at least 50 - 100 domains:

Apply at Parked for some of the best payouts. Apply for accounts at Sedo and Active Audience if you expect your domains to make over $50 a week. Both services have great looking landing pages. Sedo & SedoPro are highly recommended for international domains. Active Audience may improve search engine performance of your domains if you use their nameservers, but income there is down a bit lately.

Consider TrafficZ for nice looking and flexible parking pages. Check out other pages of this site for more on the strengths and weaknesses of these services.

If you have less than 50 domains:

Park your domains at Sedo and/or Parked for almost instant results. Apply for a Gold Key account and try some domains there too. Some domains do dramatically better at Gold Key. As mentioned above. Sedo is best for International traffic. Sedo and NameDrive use Google/AdWords ads, while Gold Key uses Yahoo/Overture. Gold Key can provide search engine traffic, and their parking pages look better. Their site takes a while to learn.

Ellos recomiendan los siguientes: Active Audience, Gold Key, Sedo and SedoPro, Parked, TrafficZ

Podéis un review de cada uno de ellos en la siguiente URL:
http://parkquick.com/index.php?option=com_content&task=category§ionid=1&id=13&Itemid=31