e for abstract modeling, algorithmic design and analysis to achieve provably efficient, scalable and fault-tolerant realizations of such huge, highly-dynamic, complex, non-conventional networks. Features including the extremely large number of sensor devices in the network, the severe power, computing and memory limitations, their dense, random deployment and frequent failures, pose new ing abstract modeling, algorithmic design, analysis and implementation challenges of great practical impact. This Workshop aims to bring together research contributions related to diverse algorithmic and complexity theoretic aspects of wireless sensor networks. This is the third event in the series. ALGOSENSORS 2004 was held in Turku, Finland, ALGOSENSORS 2006 was held in Venice, Italy. Since its beginning ALGOSENSORS is collocated with ICALP. PROGRAM COMMITTEE CHAIR Mirosław Kutyłowski, Wrocław University of Technology, Poland PROGRAM COMMITTEE Alan A. Bertossi, University of Bologna, Italy Costas B...