<a target="_blank" href="http://paybygroup.com/">PayByGroup</a>, a 500 Startups-backed payments platform which lets friends split the cost of purchase on bigger items like vacation rentals, parties, t
The service has a slightly different focus than some of the crowdfunding platforms that have sprung up as of late, like <a target="_blank" href="http://www.crowdtilt.com/">CrowdTilt</a> for example (w