Hmmm, dodgy one this....
The company I last worked for was quite happy for people to surf anywhere (within reason) during peoples lunch time
UNTIL they installed 'business critical' software that relies on the net for part of its operation......
THEN
NO-ONE was allowed to use the net for NON-BUSINESS reasons at anytime, unless they had their own dedicated connection. People did get a telling off...including me as thats when I first really started looking at the DSC site and searching for Duke stuff.
Other people did get written warnings for continued 'abuse' and be warned my company also declared that ALL and ANY e-mails were the property of the company and could be read and disclosed at will
Good luck - Frank