This again was very successfully used by churches. Our posters too have taken media interest subjects and used them to spark thought about Christianity, whether that be major movies, well-known TV adverts, or whatever. For the Internet, the parallels are obvious. A site about Christianity will only attract those already searching or interested in faith. For those whose interests lie elsewhere, Christians should be developing web-sites that connect with those interests, and then bring in the relevance of Christianity to those interests.
People are free to leave a site and surf somewhere else if they get turned off.
It is no different to an advertiser using your interests to make you want their product, except in our case only the Holy Spirit can really activate interest in our product - we just have to provide the bridge for people to walk across. Of course, this isn't the only method of evangelism that works, but it is one that becomes increasingly important as antagonism to 'traditional religion' grows in our society. Paul famously became 'all things to all men in order to reach some' - we must do the same, without compromising the message. So the host told his servants to 'go out' into the streets and bring the outcasts in, rather than those who might have been expected to want to come. In the same way, we must go out of our Christian sub-culture and into the prevailing culture to meet people where they are at, 'on the street', with an invitation to a banquet of life.