Gyachi is a Yahoo! client for Linux operating system that supports almost all of the features you would expect to find on the official Windows Yahoo! client: Voice chat, webcams, faders, 'nicknames', audibles, avatars, display images, and more.
Webcams are everywhere these days: they're standard on a lot of laptops, LCD monitors are starting to incorporate them, and decent standalone USB webcams can be had for less than $40. In this two-part series we'll set up a Webcam on Linux, and then use it to perform a number of amazing and fun tasks.
So you just set up a Linux-compatible webcam. You've tested it with Kopete, and you can send images on MSN and Yahoo! Now what? Here are some fun things you can try.
If you want the old-time GNU/Linux experience, try configuring a Web camera. Unlike most peripherals, webcams are generally not configured during installation. Moreover, where printers have the Common Unix Printing System (CUPS) and its interfaces, with webcams you are generally thrown back on whatever resources you can find on the Internet and your own knowledge of kernel modules and drivers.