Hello is a free one-on-one chat and picture-sharing application you can use in conjunction with Picasa. Unlike using email to send images to one another, Hello has no file-size limit. You can send full-size, high-resolution photos without worrying about anything other than the required transmission time. And if you have a broadband connection (a cable or DSL Internet account), even that isn't an issue. In this chapter, you'll learn the basics of using Hello as a Picasa adjunct.