有好事者在 google 趋势上比较了一下一些关键字在 google 上的搜索频率, 例如几个发行版, ubuntu, red hat, fedora, debian...以及 KDE, Gnome, 等, 结果还是比较有意思的, 呵呵.
This is a look at the state of Linux through the eyes of Google Trends, Google’s highly useful search trend analyzer.
The Linux distributions compared
Everyone says Ubuntu is the most popular Linux distribution, and boy
does it become obvious when looking at it through Google’s eyes.

With all the buzz, it shouldn’t come as a surprise that Ubuntu is
king, and while the other distributions are experiencing a downward
trend, Ubuntu keeps growing. It’s also interesting to see that Red Hat
is firmly at the bottom when comparing these five distributions.
(Google Trends only allows you to compare up to five different search terms, if you wonder why we didn’t include more.)
KDE or Gnome?
How about Linux desktop environments? KDE or Gnome, which one is more popular? Once again, let’s see what Google have to say.

They’re pretty much equal in popularity, but it seems like KDE shows up a lot more in the news (the small graph at the bottom).
Linux beats Windows Vista
According to this comparison, Linux is actually beating Windows
Vista. However, it appears that “Linux” as a search term is clearly on
the decline.

And just to tie in with the initial trend graphs for Linux
distributions, how does the popular Ubuntu fare against Windows Vista?

An interesting observation from the last two graphs, if you combine them, is that “Ubuntu” may soon be a more common search term than “Linux”. That would be quite a feat…
Conclusion
Though looking at search statistics can never give a complete
picture, this gives an interesting perspective to how things are going
for Linux, especially when viewed through the eyes of such a dominant
and pervasive search engine as Google.