This link contains the following thread from the H-TAH listserv:
Editor's Subject: H-TAH Query: Tour companies
Author's Subject: Tour Companies
Date Written: 12 December 2005
Date Posted: Tue, 12 Dec 2005 17:44:53 -0500
H-Net is celebrating 25 years of service by mining the logs of its 180+ networks for topical discussions, teaching and research resources, and milestones in H-Net’s history from a few email listservs to an online academic commons. Happy birthday, H-Net!