Gone are the days of door to door marketing, as now you can market your product to a large number of people in no time.

What is online advertising?
It is actually a type of promotion in which Internet is used for World Wide Web for the expressed purpose of delivering marketing messages to attract customers. Here are some examples of online advertising which include contextual ads on search engine results pages, banner ads, Rich Media Ads, Social network advertising, online classified advertising, advertising networks and e-mail marketing, including e-mail spam.

Legitimate Email advertising or E-mail marketing may be a new term for you it is often known as "opt-in e-mail advertising" to distinguish it from spam.

One form of online advertising is Affiliate marketing where advertisers place campaigns with a potentially large number of small (and large) publishers, whom are only paid media fees when traffic to the advertiser is garnered. It usually depends upon a specific measurable campaign result (a form, a sale, a sign-up, etc). This is usually accomplished through contracting with an affiliate network nowadays.

Affiliate marketing was actually invented by CDNow.com in the year 1994 and was excelled by Amazon.com when it launched its Affiliate Program, called Associate Program in 1996. Its program is used by the online retailer to generate low cost brand exposure and provided at the same time small websites a way to earn some supplemental income.

There are several advertising networks display graphical or text-only ads that correspond to the keywords of an Internet search or to the content of the page on which the ad is shown. The best thing is that these ads are believed to have maximum chance of attracting a user, because they tend to share a similar context as the user's search query. Take an example, a search query for "clothing" might return an advertisement for a clothing store’s website.

Another latest technique is embedding keyword hyperlinks in an article which are sponsored by an advertiser. It works in this way that when a user follows the link, they are sent to a sponsor's website.

Online advertising can be targeted based on a user's past clickstream, in addition to contextual targeting. In case if a user is known to have recently visited a number of automotive shopping / comparison sites based on clickstream analysis enabled by cookies then these are stored on the user's computer, that user can then be served auto-related ads when they visit other, non-automotive sites.

If you want to know more about online advertising marketing then the best thing is to use appropriate keywords in the search engines and get the best results of your search. You will get so much information about online advertising marketing and its related topics, so what are you waiting for.