Event Throttling Categories

All	Administration
Backup and Restore	Backward Compatible Administration
Backward Compatible Site Object Model	Business Data
Communication	Content Deployment
Database	Document Management
E-Mail	Excel Calculation Services
Excel Services Administration	Excel Services Cache
Excel Services External Data	Excel Services Session
Excel Services Web Front End	Excel Web Access
Excel Web Services	Feature Infrastructure
Fields	Forms Services Administration
Forms Services Conversion and Deployment	Forms Services Data Binding
Forms Services Data Objects	Forms Services Deployment
Forms Services File Open	Forms Services Object Model
Forms Services Rendering	Forms Services Runtime
Forms Services Runtime	Forms Services Runtime - Business Logic
Forms Services Runtime - Data Connections	Forms Services Runtime - Session State
Forms Services Validation	General
Group Approval Enhanced Group Management Library	Group Approval Enhanced Group Management Pages
Group Approval Library	Group Approval Pages
Group Approval Schedules	Group Approval SOAP
Information Policy Management	IRM
Knowledge Network Server	Launcher Service
Load Balancer Service	Long running operation infrastructure
MCMS 2002 Migration	MS Search Administration
MS Search Advanced Tracing	MS Search Indexing
MS Search Propagation	MS Search Query
MS Search Query Processor	Office Server General
Office Server Shared Services	Project Server - General
Project Server Active Cache Enterprise Resource Load	Project Server Active Cache Load
Project Server Active Cache operations	Project Server Active Cache Save
Project Server Active Directory Synchronization	Project Server Analysis Cube Building
Project Server Archive, Restore	Project Server Calendars
Project Server Global	Project Server Notifications
Project Server Portfolio Management	Project Server Provisioning
Project Server Queue	Project Server Reporting
Project Server Resource	Project Server Security
Project Server Server-Side Events	Project Server Sharepoint Integration
Project Server Status Reports	Project Server Summary Resource Assignments
Project Server Task Statusing and Updates	Project Server Timesheet
Project Server-side Project Operations	Project Web Access
Publishing	Publishing Cache
Publishing Provisioning	Records Center
Runtime	Runtime
Server Help	Session State Service
Setup and Upgrade	SharePoint Services
Site Directory	Site Management
SSO	Timer
Timer Job	Topology
Unified Logging Service	Upgrade
User Profiles	Web Controls
Web Parts	WebParts
Workflow Features	Workflow Infrastructure

These are the categories available for logging under the Event Throttling Category in Diagnostic logging in MOSS 2007