For £10.8 million, Tesco has bought a 97% stake in UK-based WE7 and plans to purchase the remaining shares within the coming weeks. Overall, Tesco intends to increase investment in its online business to around £150 million between 2012 and 2013. Last year, the supermarket chain acquired Blinkbox, a subscription-free online movie service available on PC, games consoles, tablets and smart TVs.