http://www.gtsm.com/oscon2003/toc.html;
http://www.revsys.com/writings/postgresql-performance.html;
http://www.varlena.com/varlena/GeneralBits/Tidbits/perf.html;
http://www.powerpostgresql.com/PerfList;
http://emmanueltoko.blogspot.com/2008/08/why-postgresql-instead-of-mysql.html;
