AdHerder is an automated A/B advertisement testing platform. Create your ads and AdHerder will select the best ad for each individual user.
This means you can create any number of ads to display in a wordpress widget and AdHerder will perform the following functions:
All behaviors are completely configurable.
AdHerder will automatically track clicks on links and can track just about any desired behavior. Please see the FAQ section for information on how to track Facebook likes, Twitter follows and Mailchimp signups.