Blur Group’s Creative Services Exchange hosts 10,000 small and medium-sized ad and marketing agencies from mostly the U.K. and U.S. The company said today General Electric Co. (GE)’s healthcare unit commissioned a video campaign for one of its product lines. Other brands that have submitted briefs include television news channel CNN, luxury department-store chain Harvey Nichols Group Ltd. and fashion company Polo Ralph Lauren Corp. (RL), it said. Blur Group says it is adding two brands a day.