Spending on Internet advertising in Britain jumped by nearly a fifth in the first half of 2013 to 3 billion pounds ($4.85 billion), lifted by mobile video ads and marketing on social media by brands cashing in on signs of economic recovery.
(http://europe.chinadaily.com.cn/world/2013-10/07/content_17011932.htm)
Now,more than two thirds of Britons own smartphones, according to a report earlier this year by technology company MobiLens. I can see real potential here in the digital market. Digital marketing of McDonald, such as campaigns on the Internet and cellphones, now makes up between 8% and 10% of the company’s marketing budget, up from 2% four years ago.
(www.crazyenglish.org)

So I am wondering that how can you start your Internet advertising career?

First of all, you really need to have some established traffic in order to draw interest from potential advertisers. That means you need to find some websites that are powerful in attracting people. For example you can put your advertisement on YouTube, Amazon or Skype.More competitive, more established and efficient.
Second,Social media is not a campaign, it’s a permanent approach.

Brands selling consumer goods such as clothing, food and jewellery became the biggest users of mobile advertising, almost doubling their share to 26.8 percent from 14.5 percent, the IAB said. IAB，Internet Advertising Bureau，is the department for promoting advertisement activities online. With the help of IAB, you can have more information of Internet advertising. So the cooperation is also a dominate factor.