I'm an Ubuntu user for some time.. although not a power-user.. i usually manage to solve my own problems. And now trying to do some retribution to the community a little by trying to solve others problems and bringing new users to the open source world.
Q&A for Ubuntu users and developers
Q&A for professional system and network administrators
Q&A for computer enthusiasts and power users
Q&A for professional and enthusiast programmers
Q&A for Information security professionals