Speed up the Internet: Use OpenDNS

Yesterday, I switched my network away from using the DNS servers provided by my ISP, and started using OpenDNS instead.
It doubled the speed of my web browsing.
DNS servers translate the domain you’re trying to go to into an IP address. Humans tend to think in terms of names, while computers are based on numbers. If you type “yahoo.com” into your browser, a DNS server has to take that request and turn it into a number (in this case 66.94.234.13), so it can be reached on the web. Your internet provider has DNS servers it uses for this purpose. Unfortunately, most DNS servers aren’t good DNS servers. Most ISPs don’t bother to make them good, and many bad internet connections are due to poor DNS servers provided by the ISP.
This is where OpenDNS comes in. You can tell your computer, or your whole network (if you have a router) to use these servers instead of your ISP’s junk. It will almost certainly speed up your web browsing experience. There are step-by-step instructions on the website for every operating system, but I would recommend using your router’s backend admin menu to change things for your whole network, assuming you have a router.
Oh, and the service is free.