When it spreads marketing message widely, the marketing approach which it promotes & encourages in a way such as "introduction" and "recommendation" conveying mutually between the people. Generally known "word-of-mouth communication (oral )" it is the method which is expected.

"the virus (characteristic)" with with the adjective which is said, "it keeps being infected," it is used in the sense that "propagation power is strong". From the person to the person the circumstances to which information keeps being transmitted the virus (the computer virus) keeps multiplying, it is something which is superposed.

With usual marketing, using announcement and the direct mail, the target (the customer estimated customer) it conveys marketing message, directly. There is even a possibility as for this method, when the target segment is not clear, when is, quite at non efficiency, cost not only catching, originally "the disturbance sending message" even in the person who is not the target and coming to the point of attaching, becoming the counter-result.

???? marketing, message (includes the use experience and the like of the commodity) the person who is received conveys message to some person depends. If many people "introduce" in many acquaintances, and "recommend" the message means geometrical series to be spread. In addition when usually, the person "it introduces" and "it recommends", in order to do vis-a-vis the person may accept that, "the disturbance it is difficult to become message". In addition, it comes to the point of very announcement from enterprise compared to, catching in the destination as the message which has persuasive power, the effect is very high.

The fact that it is known as the concrete case of marketing is, Hotmail (the hot mail). After this, with Web based free E-mail service, starting commercial service in 1996 July, it acquired the user 1200 ten thousand or more in only 18 months, grew in the world's largest free Web mail provider (on 1997 end of year at Microsoft to be purchased, presently it has become MSN Hotmail).

As for the terminology, ???? marketing, the American venture capital DFJ Fisher Steve jar bet Soviet ? (Steve Jurvetson) the person, in order to explain the mechanism of this Hotmail rapid growth, is something which is started using in 1997.

The capitalist of the same DFJ, (Tim Draper) the person when the HoTMaiL corporation which is the development management company of this service (spelling of that time) it invests, in the founder under E-mail says that a message that "it will procure free E-mail with P.S. Hotmail", you proposed that URL is inserted. With this, the Hotmail user it is the case that without being conscious facing toward the transmission partner, came to the point of doing advertisement announcement, grew quickly.

On the one handwhichis the advocate of permission marketing (Seth Godin) the person "Unleashing the Ideavirus" (2000) with recommended marketing with the book which is said as a method in order to receive the "first permission". In US the meaning book title "" from the fact that is, this word reached the point where concept is widely known.

As for ????? as for success example of ???? marketing it is visible at first glance, accidentally, but you insist that the possibility of occurring artificially can be raised rapidly. As for the marketing person in charge, the message which it is easy to break (as for You say that it is important to arrange the mechanism and the environment which it calls idea virus) to understand quality, make break induce.
??????????? is the special case of ?????????. ??????????? is ????????? of the shape where the medium itself which carries ???? is the product.
Definition of the marketing with (origin:work/Ohashi zen buddhism Taro translation)

Former spread study /, it is called "opinion leader" " "Early adapter" even withcommunication theory, sending out information vis-a-vis the person whose influence is strong was attached importance. The number per seat of people where information is transmitted at one time after 1995, Internet (E-mail and the bulletin board system etc.) and by the spread of the portable telephone it is it became many in the difference. There to be also such background, you probably can call that network (computer network and human network) it reached the point where the ???? marketing which utilizes quality shows power.

In case of the commodity and the service that ???? marketing, preponderantly "epoch-making" "convenience" "cool" "is pleasant", it occurs naturally.There isa similar tendency even with the goods and service where characteristic outside network works. The convenience such as that the appropriate target (with terminology o) the accuracy and it becomes important then to transmit continuously. In addition, incentive occurs the "introduction program" and the program " isone kindof marketing by the fact that the person is introduced. Simply, in the sense that, former is more profitable at former and latter there is a big difference in cost, excessively does not apply expense and acquires the user.

2000 age becoming halfway, while CGM (consumer-generated media ) having the business idea which is superior, you can call marketing for the new enterprise whose announcement budget is little, that it is quite effective expedient.