Office supply giant Staples is continuing its e-commerce push. On Wednesday, the company said it had purchased Runa, a San Mateo, Calif.-based startup that helps online retailers boost sales through personalization. The companies did not disclose any financial details related to the deal. The acquisition comes just a couple of weeks after Staples’ announcement that it had opened up a Seattle facility dedicated to e-commerce and engineering and as the retailer faces increasing pressure to boost sales and focus on its online business.

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