Anytime I need to figure out how to dig deeper into a technical problem, I start with http://stackoverflow http://stackoverflow. A lot of questions like yours

Anytime I need to figure out how to dig deeper into a technical problem, I start with http://stackoverflow http://stackoverflow. A lot of questions like yours have already been asked with hundreds of great responses. Just spend an hour searching around for database indexing, using a CDN, and writing better sql queries and you'll have pages and pages of invaluable information at your fingertips.