Online advertisers are not lacking in choices: They can display their ads in any color, on any site, with any message, to any audience, with any image. Now, a new breed of companies is trying to tackle all of those options and determine what ad works for a specific audience. They are creating hundreds of versions of clients’ online ads, changing elements like color, type font, message, and image to see what combination draws clicks on a particular site or from a specific audience.

Read the rest of this post