Advertising on the Internet or World Wide Web be come popular in the recent years. Many corporation, enterprises and personal has been taken the advantage on-line advertising and you can see ads on any web pages you browse. Browsers can go to any search engines or directories and types the keyword phrase related to what they are looking for, hit the "Search" button and they can get a huge list to narrow down the search. This is a time saving and cost effective type of advertising if you do it properly.

It has become really easy for any business to have a personalized website by which they can advertise, directly interact with the customer; provide details about their product and services. Free give away, discount or special offers and put on the website to attract more visitors.

The misuse of Internet advertising is always happen since it is easy to reach any kind of audience regardless of the kind of business. On-line advertising is classified into two kind of advertisement, legal Internet advertising and illegal Internet advertising. Legal advertising known is based on permission regardless of directories, search engine advertising, email or desktop advertising. Illegal advertising is all of mentioned but does not based on permission basic, also known as spamming.

The spamming advertising usually done by altering system settings with the execution of some external programs after which pop-up are sent to the network or computer. The external programs also known as adware or spywares. Some of these are very harmful to your computer and also very hard to remove it from the PC.

The new Internet technologies allows more special effects to be used in advertising to get visitor's attention. A lot of imagination is involved together with vivid colors, eye catchy page layout...

Animated banner advertisement on the web pages is usually created by HTML or Flash. A lot of types and sizes for banner advertisement. Banner ads displayed as PC error message or extra functional dialog box are typically called "trick banner ads". A pop-up is an advertisement displayed in a new window that covers up the active web page. A pop-under advertisement opens in another window that is under the active web page and can be seen after the present window is either closed or minimized.

Interstitial ads are those that are displayed before directing over to the desired page. Wallpaper ads form the background of the web page.The ads that float on the screen are known as a floating ad.

Polite ads download on a low pace without interrupting the normal functioning of the website. Expanding ads is the ad that extends and changes the contents of the page being displayed. Advertisements which are displayed in a video form on a website is known as a video ad. There are many ways by which advertising slots can be purchased on Internet like CPM, CPV, CPC, CPA, CPL and CPO.

CPM or cost per mil means that the advertiser is meant to pay for a particular number of people to whom the advertisement will be exposed.

CPV or cost per visitor means that the advertiser is meant to pay for the people to whom the advertisement was delivered.

CPC or cost per click means paying for the number of clicks made on the advertisement by the visitors. Although the advertisement is put up on the website, the amount is paid only after the visitor clicks on the URL of the advertisement.

CPA or Cost Per Action, means that the advertiser only pay to the publisher when visitor click on the advertisement, then take into some further action like sign-up, purchase products or services.

CPL or cost per lead is similar to CPA, only that the visitor doesn't have to necessarily buy anything; he or she can simply apply to get regular newsletters and special offers. CPO or cost per order is where the advertiser pays each time an order is placed.

The Internet advertisement is not only used to promote product or service, actually it can be used for many other purposes like promoting charity, education for group meeting.