Well when Sitepoint guys launched Flippa it was not much welcomed by many pro flippers and buyers. But today i have a good news for you regarding Flippa and your flipping projects.
I just met long time Website Flipper at Sitepoint and Flippa, very experienced and successful with his flipping ventures. He told me that Flippa is now doing just as best as it used to be at Sitepoint.
Also he said that Flippa has many great features which were not available at sitepoint marketplace. Like Flippa guys have really taken Social Media seriously and they can now send your message to your Twitter followers as well as Facebook Friends and Fans.
I will share more but for now i have to quit. Good Bye.