AUSTIN BUSINESS JOURNAL - July 28 - ThreadDating.com, the app that Michael Dell’s son Zachary plans to launch later this year isn’t the first dating tool known as Thread. In 2009, a group of San Fran entrepreneurs raised $1M to launch Thread, a dating site that integrated with Facebook to make matches based on mutual friends. By early 2011, it had closed. It’s unclear what type of business model Zachary's Thread plans to use. "It takes ~5,000 log-ins per day for a dating site to be successful. And the amount of activity is more important than the number of members," said Mark Brooks. "Advertising revenue is negligible because users are too distracted to pay much attention to ads," he said.