Please go to The Real Deal for the article-

Halstead Property announced today that it has completed the process of instituting a VOW, or “Virtual Office Web site,” making it the first major city brokerage to do so.

According to Diane Ramirez, the president of Halstead, the company has received approval from the Real Estate Board of New York for a VOW, a new type of Web site expected to have far-reaching consequences for the industry. That means that Halstead customers may now search all of the industry’s listings — provided directly by REBNY — without leaving an individual Halstead agent’s Web site. In the past, site visitors could see only Halstead exclusives.