1982: At precisely 11:44 a.m., Scott Fahlman posts the following electronic message to a computer-science department bulletin board at Carnegie Mellon University:

19-Sep-82 11:44 Scott E Fahlman :-)
From: Scott E Fahlman

I propose that the following character sequence for joke markers:

:-)

Read it sideways. Actually, it is probably more economical to mark things that are NOT jokes, given current trends. For this, use:

:-(

With that post, Fahlman became the acknowledged originator of the ASCII-based emoticon. From those two simple emoticons (a portmanteau combining the words emotion and icon) have sprung dozens of others that are the joy, or bane, of e-mail, text-message and instant-message correspondence the world over.

Websites like facebook, twitter and other social networking sites are generally blocked in schools, colleges and offices. There exist some tricks by which you can bypass the restrictions and access blocked sites, the most obvious is the use of proxies or Anonymizer websites. But using proxies doesn�t always works as they gets blocked by firewall as well. Here I am listing some other methods to access blocked contents.

1. Use IP instead of URL

Each website has its equivalent ip address. This method works best when blocked sites are stored as a list of URLs. You can use ip address to access blocked contents . For example to access facebook you can use ip address 69.63.189.11 in your address bar. You can use ip-address.com to find the ip address of other websites.