The ISB is a popular board contest started on February in 2007 by jim784m that has had its share of ups and downs throughout its run. It is essentially a competition between the users of the board, more specifically those signed up to the ISB, where users are pitted against each other in matches that under a "best post(s) wins" scenario, though with certain matches this base condition is altered. It is presented in the manner of WWE programming, with storylines and rivalries along with promos to enhance both storylines and characters. A multitude of users have risen to significance on the Smackdown Board through good performance in the ISB.

Currently, the ISB is on hiatus indefinitely.