Installed within Gmail, Gist attempts to leverage your contacts list by searching through your contacts and listing their online social presence: Twitter, Facebook and so on. Theoretically this might allow you to identify commercial opportunities. Following installation on my Google Apps dashboard, Gist ran through my 2,000 + contacts and uncovered a surprisingly small number of clients/suppliers with Facebook and Twitter accounts. Perhaps commercial Australian users are not yet quite so gaga about social media as their American counterparts.