IBM became the first company to come up with a guideline for 3D Virtual Worlds conduct according to an AP News story titled IBM Guidelines Govern Virtual Employees.

"…IBM is taking the unusual step of establishing official guidelines for its more than 5,000 employees who inhabit "Second Life" and other online universes."

"..IBM executives counter that having a code of conduct is akin to a corporate stamp of approval, encouraging workers to explore more than 100 worlds IBM collectively calls the "3D Internet."

Intel is doing something similar:

"…Intel also is drafting a tip sheet and plans to offer a voluntary course this year for employees who use blogs, social media sites and virtual worlds."

I haven't actually seen the guidelines yet; heard about the new IBM Guidelines from Shel Holtz - IBM sets rules for employees in virtual worlds.