The extraordinarily fast growth of content on the net motivated the development of fast and accurate search facilities, known as net spiders. Though a shakeout is expected in the overheated search field, to date several of these companies and others are seeing good earning from the net search business. Search became of paramount importance to net users because they need help in finding all of the information located on the net. The most popular way to apprehend the net of late has been by surfing, that is, combining hypertext interlinking with search engine-assisted expeditions. Part of the net's excitement and appeal is that so many web sites contain links to other web sites.
Push sends the web to the user on demand or ad infinitum.
Many large web content providers see push and the broadcast metaphor as major concepts that will attract advertisers to the net. By describing their content as a channel, the web recapitulates cable television which recapitulated the magazine rack and so on. But, push can provide specific and discrete data about audience and reach, the kinds of data advertisers have relied on for decades. In many ways, push is a direct relation to email mailing lists. With the latter, a user signs on to an email list and receives all the postings to that list in the form of email messages, automatically sent to the users email address at the moment they are posted to the list.