Access control service (SAML vs. SWT)

Access control services supports both SAML and SWT tokens, now what exactly is the difference between them

	SAML	SWT
Protocol support	WS Trust, WS-federations (Soap based)	OAuth WRAP and OAuth 2.0 (HTTP REST)
Cryptographic differences	Tokens are signed using asymmetric keys (which provides CA verification, and revocation)	Tokens are signed using symmetric keys

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4 different ways of implementing HTTP caching

http://betterexplained.com/articles/how-to-optimize-your-site-with-http-caching/

1. Last-Modified
   
2. ETag
   
3. Expires
   
4. Max-Age
   

Common SQL Server features not supported in SQL Azure, and there alternatives.

Feature	Alternative
File Streams	Azure storage blobs.
Distributed tx	Use SSIS
Free text search	Use Lucene
Transparent Data encryption	<<>>

SQL Server Feature Limitations (SQL Azure Database) on MSDN

High level comparison of Azure and Amazon Database choices

DBType	Azure	Amazon
non-relational (Small datasets)	Azure storage	Simple DB Amazon Simple Storage service
non-relational db (large datasets, Big Data)	Mongo DB Hadoop	Dynamo DB
Relational	Sql Azure	my sql Oracle
Other Databases	VM Role	VM Role