Here is a list of all namespaces with brief descriptions:

[detail level 12345]

objectEnergyScale_cfi
objectSelection_cff
objectSpatialResolution_cfi
OccupancyClient_cfi
occupancyplots_cfi
occupancyplotsselections_cff
occupancyplotsselections_phase2_cff
occupancyplotsselections_pixelphase1_cff
occupancyplotsselections_pixelphase1_detailed_cff
occupancyplotsselections_simplified_cff
OccupancyPlotter_cfi
OccupancyTask_cfi
officialUncalib2006Production_0_4_0_cfg
OfflineClient_cff
OfflineClient_cfg
OfflineDbClient_cff
OfflineDbClient_cfg
OfflineDbClientMP_cfg
OfflineDQM_cff
OfflineMessageLogger_cff
OfflineOutput_cfi
OfflinePixel3DPrimaryVertices_cfi
OfflinePrimaryVertices_cfi
OfflinePrimaryVerticesFromCosmicTracks_cfi
OfflinePrimaryVerticesWithBS_cfi
OfflineSiStripConfigDb_cff
offlineSlimmedPrimaryVertices_cfi
OfflineSource_cfi
OnDemandMonitoring_cfi
onia_EventContent_cff
onia_OutputModules_cff
onia_Sequences_cff
onia_SkimPaths_cff
OnlineDQM_cff
OnlineMessageLogger_cff
OnlineOutput_cfi
OnlineSiStripConfigDb_cff
OnlineSource_cfi
OpenHLT_BJet_cff
OpenHLT_HBHEnoise_cff
OpenHLT_Tau_cff
OppositeAnalyticalPropagator_cfi
OppositeMaterialPropagator_cfi
outInSeedsFromStandaloneMuons_cfi
outputCommands_cfi
outZeeAlca_cff
overlapproblemtpanalyzer_cfi
overlapproblemtsosanalyzer_cfi
OverlapTagger_cff