Reading Patterns & Practices Articles in the browser may not be the best solution. It's more comfortable to read them as PDF files. Microsoft has released nearly all Architecture Guides at Patterns & Practices as PDF files - but they are as wide spread as the articles themselves.

To get rid of this mess, here is a list with direct links to the PDF-Downloads:

Application Architecture for .NET: Designing Applications and Services

Smart Client Architecture and Design Guide

Guidelines for Application Integration

Application Interoperability: Microsoft .NET and J2EE

Caching Architecture Guide for .NET Framework Applications

Designing Application-Managed Authorization

Designing Data Tier Components and Passing Data Through Tiers

Exception Management Architecture Guide

Design and Implementation Guidelines for Web Clients

UNIX Application Migration Guide

.NET Data Access Architecture Guide

Web Service Facade for Legacy Applications Guide

WS-I Basic Security Profile 1.0 Sample Application: Preview release for the .NET Framework version 1.1

...and if you don't like PDF's too, just buy the books ;-)

Das Buch "Real World XML Web Services" von Yasser Shohoud ist als Online-Buch verfügbar.