The Wall Street Journal said the US TV ad market is a $ 70 billion business, and that video ads command more of a premium than the text /
image ads currently found in Facebook's news feed, which is also quickly running out of room for ads.
A user's home page on a social - networking site, for instance, might display the latest posts from the users» friends; the associated
images, links, and comments; notifications of pending messages and comments on the user's own posts; a list of events; a list of topics
currently driving online discussions; a list of games, some of which are flagged to indicate that it's the user's turn; and of course the all - important
ads, which the site depends on for revenues.