Just as with offline advertising, Internet marketing has trends which can maximize your earnings if you adapt to them. You should hop on the trend as it is occurring or you'll miss out. Social networking sites are a top marketing trend at this time; among others, these include Friendster and Facebook. In each case, people can sign up free and create a personal profile which enables them to post whatever interests them. Usually they can post pictures and videos, and then make friends with other people.