Computing directory
The free on-line dictionary of computing is a searchable
dictionary of terms from computing and related fields.
http://foldoc.org/
LookAT Search IBM Messages
Redirect to lookat files.
http://www-1.ibm.com/servers/eserver/zseries/zos/bkserv/lookat/lookat.html
Sysprog.Net
Managing zos and linux mainframes
http://www.sysprog.net/
ZFavorites
Zfavorites for system z is a collection of links to helpful system z and zseries web sites. it has links to various interest categories, such as products, product documentation, software and solutions, support and more.
http://www-03.ibm.com/servers/eserver/zseries/zos/zfavorites/