Loading fast for wordpress site

Give your site a boost! Implement crucial optimization techniques that will improve not only your ySlow score, but your Google rank too. In this tutorial we will cover all aspects of W3 caching, ySlow, Google page speed, CSS sprites & htaccess rules, to achieve a high ySlow score

Ref: http://wp.tutsplus.com/tutorials/the-ultimate-quickstart-guide-to-speeding-up-your-wordpress-site/