Re/code: Twitter is finally taking advantage of its massive tweet data to encourage users to shop. The social network is rolling out product pages and what the company calls Collections, distinct pages within the service where you can see info on specific products or places and actually make a purchase. A product page will include things like tweets about the product, user reviews, pricing and, in some cases, a buy button. Collections are more of a browsing experience, which include a handful of recommended products and places selected by a brand or high-profile curator.