via http://operawatch.com/news/2006/12/opera-vs-firefox.html

Articles on Digg’s homepage with the term “Opera” or “Firefox” in the titles over the past year:

Firefox: 301

Opera: 113

Articles that were posted on Slashdot over the past year containing the term “Opera” or “Firefox“:

Firefox: 146

Opera: 45

Blog posts containing the terms “Opera browser” or “Firefox browser“:

- Technorati:

Firefox: 200,752

Opera: 68,584

- Google Blog Search

Firefox: 192,964

Opera: 75,453

Webpages that were updated during the past year contain the terms “Opera browser” or “Firefox browser“:

- Google

Firefox: 145,000,000

Opera: 83,700,000

- Yahoo

Firefox: 34,300,000

Opera: 24,100,000