Contributed a review of SQL Server: Flexible, stable, with good report and data analysis capabilities

Contributed a review of Amazon AWS: Very well managed, efficient, and accessible from anywhere

Contributed a review of MySQL: Easy to use and stable, but not very powerful and scalable

Contributed a review of Amazon RDS: Easy to use, flexible, powerful, and stable

Contributed a review of SQL Azure: It is fast for replicating the data, but it is expensive