Gotta a skill or service to barter?

With the present economy, bartering has become a means of survival.  Individuals will talents are connecting with one another and trading their skills, talents or inventories in place of cash.  There are even websites that will help you with facilitating the bartering process.  Photographers, musicians, artists, and other people with talents are getting the services they need by providing a service.  Not sure how to barter, check out this article.