In the attention economy nowadays, artists are those who always need others’ attention, if no one cares them, it would be seen as a failure of their career. Because of the new format of the attention economy, the artists now using youtube channel to promote themselves. To show the other side of them which does not show in traditional media. This helps us to know more about the artist and this is a low cost way for them to promote themselves:
Not just artists, companies need to promote themselves and gain public's attention. Therefore, Facebook is really a good and no-money cost way for them. There are a lot of Facebook fans page created by the companies, they use such pages to update the latest products, events and promotion. If some people read and found these information useful, they may share on their walls in order to tell their friends. One of my favorite company fans page is Kiehl's Hong Kong, this page provides me information about promotion and new products released. I do not need to search though the internet by myself or keep checking the shop from time to time. I can know all the information I need with a click. It is really convenient, right? =]