Here's an interesting read I found.
http://www.computerworld.com/action/article.do?command=viewArticleBasic&articleId=9020942&pageNumber=1
Here's the list if you don't want to read it:
1. Cobol
2. Nonrelational DBMS
3. Non-IP networks
4. cc:Mail
5. ColdFusion
6. C programming
7. PowerBuilder
8. Certified NetWare Engineers
9. PC network administrators
10. OS/2
(Wow, I didn't know people atually still ran 0S/2! I actually bought that back in the day)
Ha!!
One of my courses at school was ecomm using Cold Fusion. :-\