Quick Fix: System services not showing up in OS X
Over at MacOSXHints there is a new tip on fixing problems with application services that do not appear properly in the Services section of the foremost application menu. Sometimes the services will not appear, show multiple of the same service, or at other times the menu may show a "Building..." status and never make the services available.
When services stop working in this manner, you can force the system to refresh them by running the following command in the Terminal:
/System/Library/CoreServices/pbs
The "pbs" service is provided by Apple to rescan the available services … Read more