Links-P3 Subcommittee
Google Group (Email List and Discussions)
https://groups.google.com/forum/?fromgroups#!forum/trb-p3-subcommittee
LinkedIn Group (Professional Networking for Members of LinkedIn)
http://www.linkedin.com/groups/TRB-Joint-P3-Subcommittee-4875266?home
FHWA Office of Innovative Program Delivery - P3 Website