The Washington Post asked three "young entrepreneurs" how their company uses infographics. They responded with similar sentiments. The first one said:
Infographics can be great as part of presentations, newsletters or other research content. It keeps people's interest by lending a storytelling and visual element to what can be sterile research.
The second said:
Infographics are outstanding for bringing life to content that would otherwise be dry, uninteresting or unshareable.
And the last one, who to be fair, seems to know more than the first two, said:
At the end of the day, the main use for infographics is to create content that can potentially go viral and drive traffic, links and exposure to a Web site and the brand.
If I were new to these infographic things, my main takeaway here would be that they're used to make boring material interesting. Shouldn't it be the other way around though? Information graphics are interesting because their foundations of data and um, information are worth looking at in the first place. Don't fall into the trap of trying to make something "visually compelling" without anything to compel with.