In July 2012, DigVentures pioneered an entirely new procurement model for archaeology, hosting Europe’s first crowdfunded and crowdsourced excavation at the internationally significant Bronze Age site at Flag Fen (www.digventures.com). Crowdfunding has been most successful in creative industries such as film, music and drama, where supporters can launch projects such as films, records, exhibitions and runway shows through buying perks and rewards (such as invitations to premieres, performances, or limited edition artwork) with creative and social entrepreneurs retaining commercial and artistic ownership of their project. Ideas that may not fit the pattern required by conventional financiers therefore achieve traction in the marketplace, supported by what has been called the ‘wisdom of crowds.’ This new approach to funding (using social networks in the context of e-commerce transactions) was combined with crowdsourcing, inviting the public to join the excavation team – either via a robust digital platform from the comfort of their armchairs (in real time), or with their sleeves rolled up on the site itself. The DigVentures approach can best be described as ‘Social Contract Archaeology’ – a value-led archaeology situated within the emerging trend for social commerce, entering into a social contract with as wide a constituency of funders and stakeholders as possible. Assessing the success of this new business model in terms of audience reach and engagement, this paper will present key metrics for breadth, depth and diversity of on and off-line participation, evaluating our contribution to the public good.