TUG
From MidrangeWiki
"TUG" stands for the Toronto Users Group for Midrange Systems. Our purpose is to provide a professional forum for the presentation and exchange of ideas that pertain to IBM midrange computers (mainly eServer iSeries / AS/400), and related subjects for users; from the technical, management, and end-user perspectives.
The IBM midrange computers are used primarily in the business, financial and manufacturing/distribution communities, however the computers are used in all communities that have applications that require the use of large and fast databases.
Information can be found at http://www.tug.ca