Useful MSDN Article Links:
Distributed Transaction Coordinator
New functionality in the Distributed Transaction Coordinator service in Windows Server 2003 Service Pack 1 and in Windows XP Service Pack 2
Troubleshooting problems with MSDTC Issues
How to troubleshoot MS DTC firewall issues
How to enable diagnostic tracing for MSDTC on a computer that is running Windows XP or Windows Server 2003
How to enable diagnostic tracing for MS DTC on a Windows Vista-based computer
Error message when you try to start a transaction in MS DTC: "New transaction cannot enlist in the specified transaction coordinator"
FIX: Upgrading DTC to Close Idle Connections
How to configure RPC dynamic port allocation to work with firewalls
Troubleshooting RPC Endpoint Mapper errors using the Windows Server 2003 Support Tools from the product CD
Service overview and network port requirements for the Windows Server system
How to configure Microsoft Distributed Transaction Coordinator on a Windows Server 2003 cluster
Troubleshooting a Windows Server Cluster
Introducing System.Transactions in the .NET Framework 2.0
Transaction Management Escalation
System.Data Integration Issues
SQL Promoting unexpectedly
SQL Committing unexpectedly ("Transaction Binding=ExplicitUnbind;")
Configuring WS-Atomic Transaction Support
I'm not sure if you're supposed to suggest new entries in the FAQ but an article I found very useful and could maybe make a good addition to the list is the following on TechNet:
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