Connecting to the Internet with Kubuntu is never a problem as it includes everything you need “out-of-the-box”.
KDE Desktop Sharing allows you to invite someone at a remote location to watch and possibly control your desktop. This can be useful if you want to have a friend in a remote location fix your Kubuntu desktop.
For more information see the Krfb manual.
Kopete is the KDE instant messaging (IM) client. It allows you to communicate with your friends and colleagues using various instant messaging services. Since Kopete can use various IM services, it is much easier to learn and more convenient than installing separate IM clients for each service.
For more information see the Kopete manual.
KPPP is a dialer and front end for pppd. It allows for interactive script generation and network setup. It will automate the dialing-in process to your ISP while letting you conveniently monitor the entire process. It also features an elaborate phone-cost accounting, which enables you to easily track your online costs.
For more information see the KPPP manual.
Konversation is a client for the Internet Relay Chat (IRC) protocol. Meet friends on the net, make new acquaintances and lose yourself in talk about your favorite subject.
For more information see the Konversation manual.
Krdc is a client application that allows you to view or even control the desktop session on another machine that is running a server that is VNC-compatible. You would typically use Krdc with a VNC-compatible server like Krfb.
For more information see the Krdc manual.
Akregator is an RSS feed aggregator for KDE. Feed aggregators provide a convenient way to browse different kinds of content, including news, blogs, and other content from online sites. Instead of checking all your favorite web sites manually for updates, Akregator collects the content for you.
For more information see the Akregator manual.
Konqueror is the definitive file manager, web browser and universal document viewer for KDE. It's everything you want it to be in a KDE application and more!
For more information see the Konqueror manual.
The KWiFiManager suite is a set of tools which allows you to manage your wireless LAN under KDE. You can scan for wireless networks and monitor the properties of your network connection.
For more information see the Kwifimanager manual.