Recently Google unveiled a new product called Google Public DNS, which will allow your PC to perform faster NS lookups while converting domain names to machine readable IP address.
Here are some ways in which you can setup Google Public DNS on your PC.
Video Tutorial to setup Google Public DNS on Windows
Step by Step Instruction to Setup Google Public DNS
What is the Google Public DNS IP
The Google public DNS IP address is 184.108.40.206 and 220.127.116.11. You can use these IP address to setup your main DNS server and the alternate DNS server.
You can find all the help and instructions you require to setup Google Public DNS on your computer by visiting this Google Public DNS page.
If you need more help, feel free to ask us in the comments.