Fab continues to gain momentum on the web. To kick off 2013, the online retailer added 1 million members in January alone, which brings total membership to 11 million. The same time last year, Fab only had 1.5 million members, so to it grow over 600 percent in one year is quite an accomplishment. Besides member growth, Fab also saw 300 percent climb in sales in January from January 2012, making it the third highest sales month ever.  [Source: Betashop]