Twitter Moments is changing. The micro-blogging site is giving brands and influencers access to its ‘Moments’ feature - a tool which will soon be available to all users. The Moments tab currently groups together popular content from across Twitter and allows users to track developing news stories and trending topics. Moments will enable brands to curate and share a selection of tweets that relate to a specifc 'event' or 'theme'. For example, during fashion week luxury brands