The map is not updated on a regular schedule - new versions are produced when we decide there have been significant changes to the available data, and/or when there's sufficient demand from the community.

You can download previous and variant versions of the map. Significant changes are noted. (Implicitly, there's newer and/or better link information on newer versions.

0.8.112th October 2007Updates across the map. No I2 or NLR on this version by default.
0.7.1a8th May 2007Includes Internet2 and NLR. Grouped logos replaced with explanatory text. Used by Educause in their "Broadband America" pamphlet.
0.7.17th Mar 2007N/A
0.6.026th Aug 2006N/A
0.5.519th Oct 2005N/A
0.5.215th Sep 2005Added "Planned" Category.
0.4.218th May 2005NLR added (can be toggled.)
0.3.226th Apr 2005N/A
0.3.125th Apr 2005Removed "Special" Category. Started adding organization logos.
0.2.21st Apr 2005N/A
0.2.129th Mar 2005Added link categories - Existing/Future/Special
0.1.023rd Mar 2005Initial Release. One link category. No national networks.