Own most or all of the advertising units on a targeted content page which allows you to position your brand with the content your customers and prospects are specifically looking for.
Roadblocks consist of 2 or more banner ads:
728×90 Leaderboard on top
300×250 Medium Rectangle on the right-hand side above the fold
300×600 Half Page Ad on the right-hand side below the fold
250×250 Square in-content
728×90 Bottom Leaderboard