In this chapter, we have taken a closer look at the fundamental construct of Windows Azure BizTalk Services—the bridge. We've seen how bridges can be configured to perform a range of integration activities and how to perform content and context-based routing. While we have looked at most of what bridges can do, in the next chapter, we'll revisit bridges and look at how to perform custom logic on the stages in a bridge using message inspectors. We'll then look at how to track and record the message properties you create (tracking) and how to batch messages together for sending.