This volume constitutes the refereed proceedings of the Second International Conference, ADHOCNETS 2010, held in Victoria, BC, Canada, in August 2010. The 26 revised full papers - selected from 45 submissions - and the 10 invited papers contributed by leading researchers promise a broad range of civilian, commercial, and military applications. They focus on topics such as network design, routing, medium access control, tracking, security, reliability, clustering, performance analysis and evaluation.