Facebook has over 300 million active users who log on daily, and allows brands to create public profile pages to interact with users. Pages are for brands and organizations only, while groups can be made by any user about any topic. Pages have no limits on fans and push content to their newsfeeds, while groups are limited to 5,000 members and only display content on their wall. Twitter is used by over 14 million US users for microblogging of 140 characters or less, and brands can use it to point to more substantial content through shortened URLs and by following information leaders.