MediaBuyerPlanner offers a look at the future of the European E-Commerce market. It's interesting to note that:

Germany, however, has the most online buyers, with 27.2 million, but produces less than half the online sales volume of the UK.
France, in turn, produces less than half Germany's e-commerce sales volume and has 14.5 million online buyers.
On average, German and French buyers are spending considerably less online per person than their UK

 Why do you suppose Germany has so many buyers online, but they aren't actually spending money when compared to the UK? Is it a cultural cause, i.e., Germans prefer to actually make purchases via other channels? Or, is it a language-related cause: that English, being the most widespread language used on the Internet, gives native English speakers a certain comfort level when they actually go to make the purchase? Anyone selling to European audiences online should also note:

The third wave will follow early in the next decade, as Eastern European states - Russia, Poland, and the Czech Republic - begin to embrace e-commerce, it said.