This despite the euro-zone crisis, as ASOS sales were bolstered by its international (hello America) sales.

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Asos, which targets 20-somethings looking to emulate the latest celebrity fashions, sells more than 60, 000 branded and own-label products.

BBC: Fashion retailer Asos in sales boost

Online fashion retailer Asos has bucked the gloomy retail trend with a "robust" set of sales figures for the first half.

BBC: Fashion retailer Asos in sales boost

Index Ventures--a backer of Facebook, Dropbox and online retail sites Etsy and ASOS--had called her in 2010, when Amoruso had no deck, no pitch.

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ASOS, says it has already made millions from Facebook referrals, but it has yet to see if the new store will lead to more sales.

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ASOS, in particular, may prove to be a formidable competitor.

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Boku, which is more a middleman than a retailer like ASOS, recently tweaked its system to let users pay for goods with Facebook Credits instead of real cash.

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StyledOn will also continue to partner with selected retailers such as Neiman Marcus, Net-a-Porter.com and ASOS to deliver members a community driven commerce experience that goes beyond both brick-and-mortar and online merchandising.

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Further strength in internet trading has been reported by Asos, the online market leader, which said sales rose 54% during the January-to-March quarter when compared with the same period a year earlier.

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The success of retailers such as the dedicated online fashion site Asos hints at how rapid the migration of sales from traditional stores to the internet is, especially among the 18-34 age group.

BBC: Zara launches online retail store