Hundreds of thousands of computers will not be able to access the internet after July 9th. This is due to a piece of malware called DNSChanger that has infilitrated these systems. The program changed where computers go when they click on a link; many times going from a legitimate site to a malicious one. On July 9th, the FBI will turn off the servers that hosted this program, making those machines go dark. The link below contains information on how you can check to see if your machine might be infected and how to correct it.