As a way to wrap up on PDC content I thought I'd do a bit of indexing to highlight the different areas of activity over the the next few years for general purpose web services development.
Service Frameworks
WCF 4.0: Building WCF Services with WF in Microsoft .NET 4.0 (Ed Pinto)
WF 4.0: A First Look (Kenny Wolf)
WF 4.0: Extending with Custom Activities (Matt Winkler)
WCF: Developing RESTful Services (Steve Maine)
WCF: Zen of Performance and Scale (Nicholas Allen)
ASP.NET MVC: A New Framework for Building Web Applications (Phil Haack)
Windows 7: Web Services in Native Code (Nikola Dudar)
Service Hosting
IIS 7.0 and Beyond: The Microsoft Web Platform Roadmap (Vijay Sen)
"Dublin": Hosting and Managing Workflows and Services in Windows Application Server (Dan Eshner)
Service Modeling
"Oslo": Customizing and Extending the Visual Design Experience (Don Box, Florian Voss)
A Lap around "Oslo" (Douglas Purdy, Vijaye Raji)
"Oslo": The Language (David Langworthy, Don Box)
"Oslo": Repository and Models (Chris Sells, Martin Gudgin)
"Oslo": Building Textual DSLs (Chris Anderson, Giovanni Della-Libera)
Service Security
Identity Roadmap for Software + Services (Bertocci Vittorio, Kim Cameron)
Identity: Live Identity Services Drilldown (Jorgen Thelin)
Identity: Connecting Active Directory to Microsoft Services (Lynn Ayres, Tore Sundelin)
Identity: "Geneva" Server and Framework Overview (Caleb Baker, Stuart Kwan)
Identity: "Geneva" Deep Dive (Jan Alexander)
Identity: Windows CardSpace "Geneva" Under the Hood (Rich Randall)
Services in the Cloud
A Lap Around the Azure Services Platform (John Shewchuk)
Architecture of the .NET Services (Dennis Pilarinos, John Shewchuk)
Live Services: A Lap around the Live Framework and Mesh Services (Ori Amiga)
Live Services: Building Applications with the Live Framework (Raymond Endres)
Live Services: Mesh Services Architecture and Concepts (Abolade Gbadegesin)
.NET Services: Messaging Services - Protocols, Protection, and How We Scale (Clemens Vasters)
Live Services: Live Framework Programming Model Architecture and Insights (Ori Amiga)
.NET Services: Orchestrating Services and Business Processes Using Cloud-Based Workflow (Moustafa Ahmed)
Live Services: Building Mesh-Enabled Web Applications Using the Live Framework (Arash Ghanaie-Sichanie)
Live Services: FeedSync and Mesh Synchronization Services (Steven Lees)
Live Services: Notifications, Awareness, and Communications (John Macintyre)
Live Services: The Future of the Device Mesh (Jeremy Mazner)
.NET Services: Connectivity, Messaging, Events, and Discovery with the Service Bus (Clemens Vasters)
.NET Services: Logging, Diagnosing, and Troubleshooting Applications Running Live in the Cloud (Mark Gilbert, Steve Garrity)
Sync Framework: Enterprise Data in the Cloud and on Devices (Liam Cavanagh)
Live Services: What I Learned Building My First Mesh Application (Don Gillett)
Live Services: Programming Live Services Using Non-Microsoft Technologies (Nishant Gupta)
Designing Your Application to Scale (Max Feingold)
Developing and Deploying Your First Windows Azure Service (Steve Marx)
Windows Azure: Architecting & Managing Cloud Services (Yousef Khalidi)
Windows Azure: Cloud Service Development Best Practices (Sriram Krishnan)
Windows Azure: Essential Cloud Storage Services (Brad Calder)
Windows Azure: Modeling Data for Efficient Access at Scale (Niranjan Nilakantan, Pablo Castro)
A Lap Around Windows Azure (Manuvir Das)
Windows Azure: Programming in the Cloud (Daniel Wang, Stefan Schackow)
Under the Hood: Inside the Windows Azure Hosting Environment (Chuck Lenzmeier, Frederick Smith)
.NET Services: Access Control Service Drilldown (Justin Smith)
.NET Services: Access Control In Microsoft .NET Services (Justin Smith)
Data Driven Services
SQL Services : Under the Hood (Gopal Kakivaya, Tony Petrossian)
SQL Server 2008: Developing Large Scale Web Applications and Services (Hala Al-Adwan, Jose Blakeley)
SQL Services: Futures (Patric McElroy)
A Lap around SQL Services (Soumitra Sengupta)
SQL Services: Tips and Tricks for High-Throughput Data-Driven Applications (David Robinson)
Developing Applications Using Data Services (Mike Flasko)
Offline-Enabled Data Services and Desktop Applications (Pablo Castro)
Oslo/M/CSD/WCF/WF/Dublin/.NET Services Doug Purdy makes the case for Oslo Dave Chappell takes a First
Oslo/M/CSD/WCF/WF/Dublin/.NET Services Doug Purdy makes the case for Oslo Dave Chappell takes a First Look at WF 4.0, Dublin, and Oslo Aaron on Introducing Oslo Aaron on Oslo and the Future of BizTalk .NET Services: MSDN Developer Center The Service Bus