Those articles are so great and so valuable that I want to save all of them.
Can I download all of them or the site?
If not, how can I save them?
Sorry, the content in the KernelTrap database is copyrighted and not available for download / distribution. Of course, you can always click "save as" on your browser to obtain a local copy (or try the FireFox "Scrapbook" plugin).
Better yet, how about I just keep the site always available online for your reference, and you can keep coming over and over again for no charge? :)