Best Site Good Work http://drugonsale.com/vetmedincouk-bc35.pdf mednap.us  Grove found that open rates from Gmail users dropped for three consecutive weeks after the introduction of the new Gmail tabs. Prior to the introduction, for some 15 consecutive weeks, Gmail average open rates hovered at about 13 percent on weekdays, according to Grove. But they fell nearly a percentage point, to just a bit over 12 percent, when Gmail tabs were first introduced.