The top advertisers of today believe that using humour as well as new and unusual ideas to surprise people is important in modern advertisements. Their aim is to create something that has never been seen before and is fascinating for people to look at. By doing this, they hope to make people forget that someone is trying to sell them something! However, not all advertising is about selling products and services for a profit. Some contemporary advertisements mainly aim to make contributions to society. There are public advertisements which encourage citizens to participate in improving their neighborhood, protecting the environment, and helping other people. Over the last decade, the government has worked hard at using advertisements to educate the public on fighting AIDS, saving water, helping the poor, giving up smoking, etc. These advertisements have helped to increase public knowledge, which has made our society a better place for everyone.