macroscopic question: DNS root server placement RSSAC, DNS technical advisory committee to ICANN goal: optimize root nameserver locations (13) co-locate skitter hosts w root servers demonstrate root server performance in serving target community develop techniques for evaluating architectual optimality for root server placement visualization to correlate data sources/types collaborative project to encourage proactive participation (network operators, researchers, others) (www.caida.org/tools/measurement/skitter/)