In your college or school they restrict to see some sites ? You can access without any restrictions using the proxy server.
What is Proxy?
Proxy server is some kind of a buffer between your computer and the designated internet destination. When you use a proxy server , your computer will send a request to the proxy server , then the proxy server will send it to the destination (for example a website), the destination will answer the request the proxy has sent and finally the proxy will return the data to you computer.
Reasons for using proxy servers:
Proxy server is able to increase or decrease the speed of your connection to the Internet depending on the location of the proxy
Proxy server ( but only anonymous) can hide your IP address (the resource you visit will retrieve the IP of the proxy, and not your
Proxy servers can help in case some owner of an Internet resource impose restrictions for users from certain countries ( for example hulu.com is only reserved for those from United States, if you are not from United States, you can’t watch videos on hulu.com)