In this chapter, I looked at five things you should know about if you're using the web-based version of Gmail: search, labels, filters, keyboard shortcuts, and security. The more you can learn about each, the more effectively you'll be able to use Gmail. In the next chapter, we examine how to integrate Gmail into desktop and mobile email programs. Some of the things we've learned in this chapter will apply, but there's a ton of new information, too. In the same way that Gmail is constantly improving and adding new and exciting features, there's always more to learn!