In this chapter, you've learned how to install and use just a few of the additional applications available for Ubuntu. Although this chapter only scratched the surface of what each application can do, you should have enough of an understanding of each to get started with them, and the Further Resources sections should help you become an expert. But beyond what is in this chapter, the vast universe of new programs is available. Go and explore—try out something new. At worst, you will have wasted a few hours, but you might find something that will change your life.
Always remember that there is a wealth of help and documentation available online. If you ever find yourself stuck, take a look at the Ubuntu Web site at www.ubuntu.com or the Ubuntu documentation at http://help.ubuntu.com and make use of the forums, wiki, mailing lists, and IRC channels.