ExtremeTech has another Vista tweaking guide, this time they focus on Internet Explorer and your network connection:
our browser and network subsystem play a major role in the use of your computer. People are spending more and more time using their web browsers and the Internet, making the web browser the most used application on many users' computers. Now that you have optimized almost every major component of the operating system, let's cover the most used application and components it is dependent on, the web browser and the network that connects you to the Internet.
First you will optimize the speed of both Internet Explorer and Firefox by tweaking the number of active downloads. Then I show you some great utilities that will increase the speed of your downloads, followed by tweaks that will speed up your network.