Look@ Knowledge Center is a new, online message and reference search facility based on the original LookAT. It works across all products in IBM Knowledge Center. It uses the Knowledge Center web site so that the information is always current.
It only takes two steps to get the message information you need. Suppose you want to look up the message ID CCN0358 for z/OS V2.3 XL C/C++ compiler, all you need to do is:
1. Choose a product: z/OS V2.3

2. Enter the message ID CCN0358, then click Go.

Then you will get your message information in Knowledge Center search result.
Note: If your product isn't on the list, you can search all products, but you will probably get multiple search results--one for each release.
Check it out: https://www-01.ibm.com/servers/resourcelink/svc00100.nsf/pages/look@kc-multi-product?OpenDocument
Look@ takes you directly to the message, message explanation and the user response. It's fast. Besides LOOK@KC, you can use the mobile application IBM Doc Buddy to check IBM Z product messages, as well as a variety of mainframe content such as blogs and articles written by mainframe experts.
You can get it free from: