View all your documents with Okular
Okular is a document viewer with an emphasis on usability and functionality. With Okular, not only can you view PDF files, but you can also view pictures, e-books, word processing documents, and even comic books quickly. Besides displaying many document types, Okular allows you to take notes about the file you are viewing.
[screenshot: Okular viewing a pdf] [screencast: "Read all of your documents and annotate them with Okular"]
Read and send emails with KMail
With KMail, you have full access to your email. You can send, receive, sort and search for emails. KMail is fully integrated with other KDE programs. For instance, contact information that you save in KMail can be used by instant messaging and calendaring programs.
[screenshot: composing email with KMail]
Chat with your friends
Kopete is an instant messenger that is designed to be easy to use. You can access many different networks with Kopete including AIM, MSN, Google Talk, Jabber, and ICQ. With Kopete, you can also customize your IM experience. For example, you can allow only certain contacts to interrupt you.
[screenshot: contact list + chat window] [screencast: two tabbed chat with Kopete, different networks, contact list]