The document discusses the 2008 Horizon Report, which identifies and describes emerging technologies likely to have a large impact on education over the next five years. The report is produced through an extensive research process involving an international advisory board. It groups technologies into three categories based on their expected time to adoption in mainstream education: technologies likely to become established within one year (Horizon 1), two to three years (Horizon 2), and three to five years (Horizon 3). The 2008 report identified grassroots video, collaboration webs, mobile broadband, data mashups, collective intelligence and social operating systems as important emerging technologies.