Reddit makes its pitch to the ad world

Reddit, the community-based social network, is expanding its ad business with a UK advertising operation to sell against the site’s second-largest user base outside the US.

The first thing to know about Reddit is that it’s one of the world’s most popular websites. Globally, it sits 19th in the Alexa rankings; in the US, it sits seventh – ahead of Wikipedia. In the UK, where the company has just opened up its advertising offer,...