Today, GuerrillaGardening.org is still his blog but also includes tips, links and thriving community boards where guerrilla gardeners from around the world are finding supportive locals. His book, "On Guerrilla Gardening", which describes and discusses activity in 30 different countries, was published by Bloomsbury Publishing in the UK and USA in May 2008, in Germany in 2009, France in 2010 and South Korea in 2012. He regularly speaks on the subject to audiences and in 2010 launched a campaign focusing specifically on pavements as an opportunity, to 'plant life in your street'.