We build and publish niche websites that are monetized via AdSense. It takes 6 months to get the sites seasoned and earning and then we flip them through Flippa.com and our own site at http://adsenseflippers.com/buy-our-sites. We're able to create our sites for approximately $50.00 and sell them for $180-$200 net within 6 months. We've built over 800 sites and are currently building approximately 100-120 per month. We have 15K+ visits per month and 2,000+ subscribers in 6 months.