Here is search logs of 650,000 AOL users. It's very interesting to view search history of particular person and analyze his personality. Let's do it together! Read more about AOL search database scandal or view research papers on web searching.
ZIG Mailing List at W3C.
This is the mailing list of the Z39.50 implementors group (ZIG), hosted by W3C. Was originally hosted by LOC (http://www.loc.gov/z3950/agency/zig/listserv.html).