• J-Sim — http://www.j-sim.org/
• ns-2 — http://www.isi.edu/nsnam/ns/
• GloMoSim — http://pcl.cs.ucla.edu/projects/glomosim/

• BRITE — http://www.cs.bu.edu/brite/
• GT-ITM— http://www.cc.gatech.edu/projects/gtitm/

• Pathchar: http://www.caida.org/tools/utilities/others/pathchar/
• pathChirp: http://www.spin.rice.edu/Software/pathChirp
• Skitter: http://www.caida.org/Tools/Skitter/
• Skping: http://wwww.caida.org/tools/measurement/skitter/skping
• Surveyor: http://www.advanced.org/csg-ippm

• Active Measurement Program (AMP): http://amp.nlanr.net/AMP/ 
• NIMI: a project funded by the NSF to measure the global internet. http://www.psc.edu/networking/nimi/welcome.html
• PingER: http://www-iepm.stanford.edu/
• RIPE's: http://www.ripe.net/test-traffic/index.html

• Center for Embedded Networked Sensing:
  Center for Embedded Networked Sensing
• tinyos (Berkeley motes): http://webs.cs.berkeley.edu/tos/, also see its related links:  http://webs.cs.berkeley.edu/tos/related.html
• smart dust at Berkeley: http://robotics.eecs.berkeley.edu/~pister/SmartDust/

(Two database search:  IEEE — http://www.ieee.org/conferencesearch/  ACM — http://campus.acm.org/calendar/)