A uniform job monitoring service in multiple job universes

We describe an ongoing work of extending the gLite Logging and Bookkeeping (L&B) service to be able to track additional types of jobs, with the vision of being able to uniformly follow jobs on the Grid, even when they pass between different middleware domains. Details are given on the simpler case of PBS jobs, which prove the cababilityof L&B to deal with additional job types,as well as started more complex and challenging work on Condor jobs, where theimpact of eventual success is larger.