Work is definitely not allowed under the VWP, only "tourism and business": http://travel.state.gov/visa/temp/without/without_1990.html#travelertype http://trave

Work is definitely not allowed under the VWP, only "tourism and business": http://travel.state.gov/visa/temp/without/without_1990.html#travelertype http://travel.state.gov/visa/temp/without/without_1990.html#... Maybe a trip when you work on behalf on a foreign employer counts as "business".