lol would be the most popular
Some say "Hi" is a slang. If so, then it is most used.
apples
The most popular games on the web is RuneScape and Club Penguin.
The most popular web browser is google.
One of the most popular slang terms used in Brazil is "legal." It is often used to describe something as cool or great. Another common slang term is "beleza," which means "okay" or "alright." Lastly, "muito massa" is a popular phrase that is equivalent to saying something is very cool or awesome.
iCarly
Google is the most popular web-it can do anything you want it to do!
The most popular downloads pertaining to the internet by far were Google Chrome and Mozilla Firefox. Web browsers have been the most popular downloads for some time now.
Wordpress is one of the most popular web content management systems. Other popular options include Joomia, Drupal and ExpressionEngine. Drupal is considered to be the most secure.
PayPal.
Most of the web is coded in HTML.
There are several very popular travel web sites. The most popular travel web sites are Travel Advisor, Yahoo Travel, Expedia, Travelocity, and Priceline.