Ecosystem Flashback: May 2004 vs. Today

Michelle Malkin posts this morning on mobility in the blogosphere, pointing out that contrary to conventional wisdom, there is actual change in the top ranked blogs over time.
With Michelle’s post prompting me, I decided to reach back into the Ecosystem’s historical database and check out what the Top 30 (“Higher Beings” and “Mortal Humans”) looks like today as compared to six months ago (May 7, 2004).
Here’s the result:

Blog November Rank May Rank
Instapundit.com 1 1
Daily Kos 2 3
Talking Points Memo 3 2
DRUDGE REPORT 2004 4 10
Power Line 5 71
Boing Boing 6 16
lgf: put your foot on the rock 7 9
Eschaton 8 4
www.AndrewSullivan.com 9 5
The Washington Monthly 10 14
The Corner 11 15
Wizbang 12 37
Blogs For Bush 13 23
The Command Post 14 40
The Volokh Conspiracy 15 7
Captain’s Quarters 16 NA
Slashdot 17 22
Michelle Malkin 18 NA
Dean’s World 19 17
a small victory 20 8
JoeUser.com 21 303
Lileks 22 12
The New Republic Online: etc. 23 13
Tim Blair 24 24
Belmont Club 25 79
Matthew Yglesias 26 18
Vodkapundit 27 30
RealClearPolitics 28 139
IMAO 29 19
Wonkette 30 56

Blogs highlighted in green were not in the Top 30 in May, but are now.
So of the current Top 30, nine blogs weren’t there six months ago — just under one third. That certainly isn’t a monolithic and static list — it shows quite significant turnover, really.
In case you are curious, the reason I didn’t do this comparison by Traffic rankings is that I only started capturing historical data for traffic about a month ago. But going forward, I’ll be able to provide interesting historical reports on traffic, as well as links.
Update: Corrected to show that Matt Yglesias was ranked in the Top 30 in May 2004 as well as November.