It has taken a while for internet marketing to really catch on, but now it is of major importance to brands. Companies spend considerable sums on internet advertising, particularly on platforms such as Google Adsense. Although Google keeps a chunk, the rest goes to website owners who place Adsense ads on their web pages and blogs. The largest website of all, according to Alexa, is Google. The second largest site since April is YouTube. It has to be remembered, of course, that Google owns YouTube, doubling its importance as an advertising platform. You cannot just post a video on YouTube and hope it earns you cash maie this would not work even if you were lucky enough for the video to go viral.