Linux Sites (sorted by Links in)

• Linux Online — Traffic: Top 10,000. Links in: 17,708. Pages: 183. Visits: 44,622.
• SSC — Traffic: Top 100,000. Links in: 10,131. Pages: 6. Visits: 6,461.
• FreeCode — Traffic: Top 1,000. Links in: 6,456. Pages: 133. Visits: 13,938.
• Linux Documentation Project — Traffic: Top 100,000. Links in: 6,206. Pages: 6. Visits: 10,131.
• Slashdot — Traffic: Top 1,000. Links in: 4,960. Pages: 284. Visits: 100,502.
• Woven Goods For Linux — Traffic: Top 100,000. Links in: 3585. Pages: 1100. Visits: 2,306.
• Linux Gazette — Traffic: Top 100,000. Links in: 3,340. Pages: 727. Visits: 2,672.
• Linux News — Traffic: Top 10,000. Links in: 2,409. Pages: 188. Visits: 8,726.
• Linux Mall — Traffic: Top 100,000. Links in: 2,400. Pages: 188. Visits: 8,726.
• Linux Resources — Traffic: Top 100,000. Links in: 2,371. Pages: 664. Visits: 4,414
• Freshmeat — Traffic: Top 100,000. Links in: 2,267. Pages: ?. Visits: 4,522.
• Linux International — Traffic: Top 100,000. Links in: 2,011. Pages: 95. Visits: 2,074.
• Linux Journal — Traffic: Top 100,000. Links in: 1,604. Pages: 8. Visits: 2,010.
• Linux Weekly News — Traffic: Top 100,000. Links in: 1,269. Pages: 95. Visits: 4,093.
• Linux Today — Traffic: Top 10,000. LInks in: 1,151. Pages: 10. Visits: 11,488.
• Linux World — Traffic: Top 50,000. Links in: 680. Pages: 10. Visits: 4,846.
• Linux Links — Traffic: Top 100,000. Links in: 615. Pages: 36. Visits: 1,210.
• Linux.com — Traffic: Top 100,000. Links in: 363. Pages: 173. Visits: 4,609.
• Themes.org — Traffic: Top 100,000. Links in: 353. Pages: 19. Visits: 3,593.
• Linux Magazine — No Alexa ranking. No links in. Pages: 3. Visits: 130.

Linux Sites (sorted by Visits)

• Slashdot — Traffic: Top 1,000. Links in: 4,960. Pages: 284. Visits: 100,502.
• Linux Online — Traffic: Top 10,000. Links in: 17,708. Pages: 183. Visits: 44,622.
• FreeCode — Traffic: Top 10,000. Links in: 6,456. Pages: 133. Visits: 13,938.
• Linux Today — Traffic: Top 10,000. LInks in: 1,151. Pages: 10. Visits: 11,488.
• Linux Documentation Project — Traffic: Top 100,000. Links in: 6,206. Pages: 6. Visits: 10,131.
• Linux News/Mall — Traffic: Top 10,000. Links in: 2,400. Pages: 188. Visits: 8,726.
• SSC — Traffic: Top 100,000. Links in: 10,131. Pages: 6. Visits: 6,461.
• Linux World — Traffic: Top 50,000. Links in: 680. Pages: 10. Visits: 4,846.
• Linux.com — Traffic: Top 100,000. Links in: 363. Pages: 173. Visits: 4,609.
• Freshmeat — Traffic: Top 100,000. Links in: 2,267. Pages: ?. Visits: 4,522.
• Linux Resources — Traffic: Top 100,000. Links in: 2,371. Pages: 664. Visits: 4,414.
• Linux Weekly News — Traffic: Top 100,000. Links in: 1,269. Pages: 95. Visits: 4,093.
• Themes.org — Traffic: Top 100,000. Links in: 353. Pages: 19. Visits: 3,593.
• Linux Gazette — Traffic: Top 100,000. Links in: 3,340. Pages: 727. Visits: 2,672.
• Woven Goods For Linux — Traffic: Top 100,000. Links in: 3,585. Pages: 1,100. Visits: 2,306.
• Linux International — Traffic: Top 100,000. Links in: 2,011. Pages: 95. Visits: 2,074.
• Linux Journal — Traffic: Top 100,000. Links in: 1,604. Pages: 8. Visits: 2,010.
• Linux Links — Traffic: Top 100,000. Links in: 615. Pages: 36. Visits: 1,210.
• Linux Magazine — No Alexa ranking. No links in. Pages: 3. Visits: 130.

Development Community Sites (sorted by Links in)

• Apache.org — Traffic: Top 10,000. Links in: 116,756, Pages: 2336. Visits: 19,989.
• GNU — Traffic: Top 10,000. Links in: 13,845. Pages: 459. Visits: 9,605.
• Linux Documentation Project — Traffic: Top 100,000. Links in: 6,206. Pages: 6. Visits: 10,131.
• Mozilla.org — Traffic: Top 10,000. Links In: 3,828. Pages: 158. Visits: 13,514.
• Scripting.com — Traffic: Top 10,000. Links in: 12,448. Pages: 258. Visits: 7,409.
• Cygnus — Traffic: Top 100,000. Links in: 6,297. Pages: 1533. Visits: 4832.
• KDE — Traffic: Top 10,000. Links in: 3,192. Pages: 303. Visits: 12,030.
• The GIMP — Traffic: Top 100,000. Links in: 3,605. Pages: 174. Visits: 4,537.

Development Community Sites (sorted by Visits)

• Apache.org — Traffic: Top 10,000. Links in: 116,756, Pages: 2336. Visits: 19,989.
• Mozilla.org — Traffic: Top 10,000. Links In: 3,828. Pages: 158. Visits: 13,514.
• KDE — Traffic: Top 10,000. Links in: 3,192. Pages: 303. Visits: 12,030.
• Linux Documentation Project — Traffic: Top 100,000. Links in: 6,206. Pages: 6. Visits: 10,131.
• GNU — Traffic: Top 10,000. Links in: 13,845. Pages: 459. Visits: 9,605.
• Scripting.com — Traffic: Top 10,000. Links in: 12,448. Pages: 258. Visits: 7,409.
• Cygnus — Traffic: Top 100,000. Links in: 6,297. Pages: 1533. Visits: 4,832.
• The GIMP — Traffic: Top 100,000. Links in: 3,605. Pages: 174. Visits: 4,537.

Applications (sorted by Links in (also Visits)

• Corel — Traffic: Top 1,000. Links in: 22,362. Pages: 8,316. Visits: 75,465.
• Star Division — Traffic: Top 100,000. Links In: 1,526. Pages: 180. Visits: 9,673.
• Applix — Traffic: Top 100,000. Links In: 915. Pages: 191.Visits: 1,571.

Hardware Vendors

• VA Research (now VA Linux Systems) — Links In: 827. Pages: 29. Visits: 2,892.

Distributions (sorted by Links in)

• Red Hat — Traffic: Top 1,000. Links in: 21,016. Pages: 91. Visits: 83,228.
• Slackware — Traffic: Top 10,000. Links in: 12,360. Pages: 986. Visits: 10,583.
• Debian — Traffic: Top 10,000. Links in: 7,012. Pages: 116. Visits: 9,809.
• Caldera — Traffic: Top 10,000. Links in: 5,633. Pages: 1470. Visits: 4,131.
• Pacific Hi-Tech — Traffic: Top 100,000. Links in: 2,483. Pages: 40. Visits: 1797.
• S.u.S.E— Traffic: Top 100,000. Links in: 161. Pages: 139. Visits: 3,884.

Distributions (sorted by Visits)

• Red Hat — Traffic: Top 1,000. Links in: 21,016. Pages: 91. Visits: 83,228.
• Slackware — Traffic: Top 10,000. Links in: 12,360. Pages: 986. Visits: 10,583.
• Debian — Traffic: Top 10,000. Links in: 7,012. Pages: 116. Visits: 9,809 .
• Caldera — Traffic: Top 10,000. Links in: 5633. Pages: 1470. Visits: 4,131.
• S.u.S.E.— Traffic: Top 100,000. Links in: 161. Pages: 139. Visits: 3,884.
• Pacific Hi-Tech — Traffic: Top 100,000. Links in: 2483. Pages: 40. Visits: 1797.

Alexa explanations:

Traffic: This rating indicates how a home page ranks against other home pages on the Web in terms of traffic. Home pages are personal pages hosted by community sites or large ISPs. This is derived from Visits

Links In:  The number of Links In is an indication of reputability. "Links In" is the number of different Web pages that link to this particular Web site.

Pages: "Pages" is the number of Web pages on the site. Page data is based on Alexa's periodic Internet crawls. Page data does not include pages excluded by robots.txt, cgi-bin, and other restrictions.

Visits: Traffic data is based on "Visits" over the last 6 months, which is a count of the total number of page visits by Alexa Users to this site. Alexa measures the largest, most geographically and demographically diverse sample of overall web usage currently available.

Notes: For some reason, Alexa hasn't measured pages in Freshmeat, so that number is missing. Also, I included Scripting.com as a Linux-related site because they have begun Linux development, have a growing Linux constituency and are hoping to partner with SSC.

FWIW: Alexa was just bought by Amazon.