Of all the available media, social isn't attracting the most advertising dollars -- yet.
But it's fast rising. Some advertisers have taken to the new medium like ducks to water. Others are floundering.
Here's a guide, based on BI's own reporting and research, to the companies that are dominating the new, hot space.
We've used nine prominent social media advertisers -- not just the big ones, but the smart ones too -- to make our case.
This is what the social media advertising ecosystem looks like right now, courtesy of IAB. It's complicated, and advertisers navigate it at their peril:

Courtesy of The Jordan, Edmiston Group Inc. and IAB.
Get it right, however, and a company can create a huge amount of consumer impressions for almost no money. Here's what it looks like when a post goes viral on Tumblr, for instance, Courtesy of Union Metrics:
Luck will only get you so far, however. Facebook, for instance, has an algorithm that prevents boring posts from advertisers from being seen by their fans.

It's VERY controversial among advertisers.
You can read more about that here.
See the rest of the story at Business Insider
Please follow Advertising on Twitter and Facebook.