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1.
Business done over the internet.
"Amazon.com deals in a lot of dot commerce daily."
by Dodger Of Zion July 11, 2003
 
2.
Dot Commerce refers to activity within the technology market sector, and specifically refers to commercial activities conducted via the Internet or other electronic means. Dot Commerce can also refer to transactions between technology companies (i.e., "dot coms").
With the merger of the two struggling dot coms, analyists predict that dot commerce will be dominated by a few key players.

by Gene July 10, 2003
 
3.
This is a stupid buzzword made up by the media on the grounds they believe it sounds trendy.
dot commerce entrepreneuers found shares down this week according to the latest FT ...
by screwed up myself July 08, 2003
 
4.
1. A popular scam that peaked in the mid-to-late 90s. The fundamental premise was that having a web page magically made money appear out of thin air.

2. A derisive term for a place of business.
1. I don't need to have a product to make money, I run a dot commerce business!

2. He says he was a CEO? Yeah, sure, of a dot commerce company.
by GrouchySmurf July 10, 2003