How can I speed up the loading time for my word press site?

Which hosting provider are you using?

My site was seeming slow, loadin’ page time was 6 sec,
but once i’ve installed wp super cache and configured it + wp HTTP compression, it become just too faster, loadin’ time changed from 6 to 0.5 sec.

I would say those 2 plugins are the most powerful optimizers to speed up your blog i’ve ever experienced on wordpress !