For example, I consider Microsoft Business Intelligence as a platform and eco-system surrounding it are:
1) Custom .NET and cross Microsoft platform based applications that integrate with MS BI
2) Cloud setup and configuration using Windows Azure platform
3) Infrastructure used with MS BI and related components like SAN, Load Balancers etc
4) Collaboration platforms like Sharepoint
5) Storage platforms like data warehouses
6) Application Design patterns like MVVM as they impact data access methodology from MS BI based data stores using LINQ and other methods
7) Reference architectures like fast track data warehouse
8) Cross BI platforms like SAP and Duet Architecture from an integration aspect
9) Hosting patterns using virtualization
10) Security models like federation services and much more.
1) Using Windows Azure Virtual Machine Role
2) Getting started with Cloud Business Intelligence
3) Creating Self-Service Analytic BI Applications with Microsoft SharePoint 2010
4) MVC , MVP and MVVM : A Comparison of Architectural Patterns
5) Application Development with HTML5
6) Managing Master Data Services with MDS and Microsoft Excel
7) Combining Public and Private Clouds into Useful Hybrids
8) Architecting for a Secure Cloud
9) Creating Great End-User Experiences with Fast Search for Sharepoint 2010
10) The Taming of the Clouds: Integrating SaaS with your On-Premise Environment
11) What Are the Bridges between Private and Public Cloud
12) Hyper-V Cloud Fast Track: A Reference Architecture for Private Cloud
13) Fast Track Data Warehouse Version 3.0 New Features and Best Practices
14) Microsoft SQL Server in Virtualization and Private Cloud
15) Microsoft SQL Server Analysis Services Design Challenges
16) Let's Get Visual: The Art of Report Design
17) Innovative Storage and Data Management Strategies to Power Your Microsoft Enterprise Applications
18) SAP Interoperability with Duet Enterprise for Microsoft Sharepoint and SAP , BCS , and Microsoft Office 2010
19) Active Directory Federation Services , Part I : How do they really work ?
20) Active Directory Federation Services , Part II : Building Federated Identity Solutions
21) Best Practices for Private Cloud Implementation
22) Advanced Business Intelligence Solutions Using Microsoft Excel + Excel Services
23) Scale-Out Deployment of Microsoft SQL Server Reporting Services
24) Developing Enterprise-Grade Mobile Solutions
25) IT-Centric Dashboard in Minutes with Microsoft Sharepoint 2010 Using Microsoft Visio / Visio Services
26) Virtualizing Microsoft SQL Server with Hyper-V
27) Connecting Cloud and On-Premises Applications Using Windows Azure Virtual Network
28) Using Microsoft SQL Azure with On-Premises Data : Migration and Synchronization Strategies and Practices
29) Managing Windows Azure Applications
30) Using Knowledge to Cleanse Data with Data Quality Services