At various jobs I had the opportunity to take the following training courses.
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      Convex — Courses taught by CONVEX Computer Corporation | 
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      Sun — Courses taught by Sun Microsystems, Inc. | 
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      Usenix Association — Courses taught at conferences sponsored by the Usenix Association | 
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      Veritas — Courses taught by Veritas | 
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      Others — Courses taught by other professionals, at one or more places of employ, not specific to one vendor | 
Select a link from the preceding table or scroll through the page.
In December, 1999, I took Sun Microsystem's course on administering their Enterprise 10000 Server.
I'm a member of the USENIX Association and have attended many conferences they've run. At these conferences I've taken the tutorials listed below.
Administration 
- Administering linux in Production Environments
 - Administering Windows NT: A Course for UNIX People
 - linux Systems Administration
 - New Topics in System Administration
 - System and Network Performance Tuning
 Networking 
- Hubs, Bridges, and Routers
 - Intermediate Topics in DNS
 - Introduction to DNS
 - Storage Area Networking
 - What's New in Networking
 Security 
- Hacking Exposed: live!
 - How to Plan Internet Security and Firewalls
 - Forensic Computer Investigations: Principles and Procedures
 - Internet Security for UNIX System Administrators
 - Network Security Profiles: What Every Hacker Already Knows About You, and What To Do About It
 - Real World Applications of Cryptography
 - Security on the World Wide Web
 WWW and html 
- Advanced html Design
 - CGI and WWW Programming in Perl
 - Creating a Web Site with html and CGI
 - Web Server Administration
 - Web and Intranet Performance: A Quantitative Analysis
 Miscellaneous 
- The Law and the Internet
 - Managing and Being Managed
 - Writing Good Stuff: A Practical Guide for Technical Content
 
In October, 1999, I took Veritas' Beginning and Advanced Veritas File System (VxFS) Administration courses.
In addition to formal schooling (K through 12 and college) and vendor-specific classes, I also attended the following non-product-specific ("soft skill") courses: