SQL Server 2008 R2 database administration learning course

As I am fallowing and learning Sql server administration From Trainsignal and other web information sites.  as per my guidance and knowledge iam posting few topics.  

                       SQL Server 2008 R2 database administration

Lesson :-1 
 
Getting Started on SQL Server 2008
  SQL Server Version History
  SQL Server 2008 Editions
  What's New in SQL Server 2008?

  Install SQL Server 2008
  SQL Server 2008 Requirements
  Downloading SQL Software
  SQL Server Security
  Installing SQL Server 2008
  SQL Server Installation Center Overview
  New SQL Server Stand-Alone Installation
  Launching SQL Server 2008 Management Studio

Lesson :- 2
  SQL Server 2008 Manageability
  Central Management Servers
  Policy-Based Managements

Lesson :-3 
 SQL Server 2008 Performance
  Resource Governor
  Data Collector

Lesson :-4
  SQL Server 2008 Security Enhancement
  Encrypting Databases
  SQL Server Audit

Lesson :-5
  SQL Server Database Development Enhancements
  Transact-SQL Enhancement
  SQL Server Management Studio Enhancement

Lesson :-6
    Backup Compression