Online diamond and jewelry retailer Blue Nile is opening yet another physical location as it seeks to unite Internet sales with a brick-and-mortar presence. The latest 'Webroom' will be opened in the summer at the Washington Square Mall in Portland, Oregon. Last week, Blue Nile announced its third such online/offline hybrid retail model would be opened near Washington D.C. following two such stores being opened in New York. Webrooms are display locations that provide a retail experience for consumers to see goods available for sale which can then be ordered on a PC, by smartphone or via a tablet. Sales can also be made online via in-store tablets and with the help of non-commissioned consultants.