Few entrepreneurs achieve significant success. Even fewer manage to do so twice around. But Adrian Giles and Andrew Barlow are hoping to do exactly that with their latest venture, the listed company Webfirm Group. At the heart of Webfirm is Adslot, a technology that helps publishers sell their online advertising industry. Whether they can emulate the success they achieved when they sold their web measurement company Hitwise in 2007 for US$240 million remains to be seen, but they've just raised $7.5 million to ge them started. You can read about them in this article for the Sydney Morning Herald by clicking here.