Additional info for RRL

http://www.databasejournal.com/features/postgresql/article.php/3288951/PostgreSQL-vs-MySQL-Which-is-better.htm

http://www.wikivs.com/wiki/MySQL_vs_PostgreSQL

http://facility9.com/2011/12/ten-reasons-postgresql-is-better-than-sql-server/

http://facility9.com/2011/12/ten-reasons-postgresql-is-better-than-sql-server/