As you may or may not know, there is searchable/browsable archive of the Code4Lib mailing list available at the following URL:
The archive dates back to 2003. I am unable to claim very much beauty when it comes to the archive, but it is 100% functional. One can even download the raw data from all those years. Ask me how.
A longer list of similar archives/journals is available one directory up from Code4Lib:
Congratulations to Code4Lib for its longevity. "Mr. Serials is dead; long live Mr. Serials."
Eric Lease Morgan
University of Notre Dame