If you’re a huge fan of gmail you don’t even need skype (as long as you can convince people to use gmail as well!), gmail has release the Linux Support for Video Chat, here’s a really simple how-to:
1) Access the google video chat site.
2) Download the correct installer.
Remember to select the correct Operating System and Architecture: 32 or 64 bits (how to find out your architecture in this post)
3) Double Click the .deb file and it will install under Ubuntu Software Center (or package manager)
4) It’s done, login in Gmail. And have fun.
Notice: there’s an icon with a camera next to your gmail-chat user name!