Program Co-chair:
- NSDR 2008 (with SIGCOMM 2008), Seattle, WA	Aug 2008
Organizing Committee:
- EWSN 2007, Delft, the Netherlands	Jan 2007
Program Committees:
- NSDR 2009 (with SOSP 2009), Big Sky, MT	Oct 2009
- WCSN 2008, Allahabad, India	Dec 2008
- WSAN 2008, Ottawa, Canada	July 2008
- WEWSN 2008 (with DCOSS 2008), Santorini Island, Greece	Jun 2008
- RealWSN 2008 (with EuroSys 2008), Glasgow, Scotland	Apr 2008
- WCSN 2007, Allahabad, India	Dec 2007
- WSAN 2007, Albacete, Spain	Sep 2007
- NSDR 2007 (with SIGCOMM 2007), Kyoto, Japan	Aug 2007
- WCSN 2006, Allahabad, India	Dec 2006
- RealWSN 2006 (with MobiSys 2006), Uppsala, Sweden	Jun 2006

External Reviews:
I have been a reviewer for EWSN, INFOCOM, IPSN, SECON, and TOSN.