Nice, but long reading on open source Linux, Unix, BSD, very
informative:

' The sorry state of open source today

Written by Radu-Cristian Fotescu
Apr 14, 2007 at 11:51 PM

Article Index
The sorry state of open source today
1. The kernel and friends, take one
2. The bugs, out in the open
3. Our friends, the software patents
4. Devils advocate: what if...
5. Detrimental to Linux at large
6. The lost battle of the GPLv3
7. The business model
8. The package management
9. What does it mean to be stable
10. Eye-candy: competing with Vista?
11. The security model
12. Hype vs. real needs
13. Our friends are our foes
14. You can leave your hat on
15. Documentation, at large
16. Fixing bugs by not fixing them at all
17. The Debian kindergarten
18. Freedom and myths
19. The kernel 2.6.20
20. 2.6.16 and 2.4.35: does anyone care?
21. KDE vs. GNOME
22. Alice in BSD-land
23. Shooting yourself in the foot
24. The awakening
25. Whereto?'

http://www.thejemreport.com/mambo/content/view/309/122/

For me I learned much from it, as it is not that long that I am with
Slackware.

Positive article on Slackware too.