The Global Adopt a JSR program, combining efforts of SouJava and London Java Community, is an excellent place to get some Java User Group (JUG) resources for JSRs. It also has the potential to act as an extra set of eyes, ears and volunteers for JSRs.
The Global project to go to is at: http://adoptajsr.java.net. The wiki page explaining the whole program and benefits to Spec Leads and EG's can be found there, including:
Also check out this InfoQ article with Martijn Verburg about the London Java user group, the Adopt a JSR program, the JCP and Oracle’s handling of the Java community.