Increasing blog speed

Hey guys, aside from decreasing the size of the images on my page, what can I do to increase the loading time on my page? I have installed the widget W3 Cache and it has taken the loading time from 8.3 seconds to 5.1. Is there anything else I can do? Here is the link so you guys can look at it if you need to.
http://importtheater.com/
Increasing blog speed

See original post by Earl Sargent