Later today at the ad:tech event in San Francisco, SocialTwist / Tell-a-Friend will be debuting a new type of social ad unit, which it claims is the first ‘word-of-mouth widget for ads’, in private beta. We covered the company’s forray into the content sharing widget space in September 2008, and indicated at the time that the startup was thinking of clever ways to monetize the service by working… → Read More