Soon after the advent of internet, it was realized that the website real estate (or the space on websites) had commercial value in the advertising world. The simple reason behind this was the soaring popularity of internet and the increasing number of eyeballs received by various websites. Thus, internet advertising (or online advertising) came into being. Today, internet advertising is treated as one of the most effective and most economical means of advertising. In fact, a lot of businesses, especially small businesses, use only this (affordable) medium for advertising their products and services. As technology progressed, so did the online advertising methodologies. Graphics based banner Ads and text Ads got their due recognition and were used quite extensively for online advertising. Even now banner advertising is one of the most popular forms of online advertising.