20 The Digital Innovation Playbook Linked on LinkedIn LinkedIn is also a very powerful solution, especially business to busi- ness. There are more than 70 million users worldwide. Their mem- bership comes from more than 200 companies from every continent. LinkedIn is available in six languages: English, French, German, Italian, Portuguese, and Spanish. About 80 percent of these com- panies use LinkedIn as a recruitment tool. A new member joins LinkedIn every second. LinkedIn receives almost 12 million unique visitors per day. Executives from all of the Fortune 500 companies are on LinkedIn. (Statistics are from the LinkedIn press center and SysComm International.) Touring the Blogosphere More than 77 percent of Internet users read blogs. There are cur- rently more than 133 million blogs listed on leading blog directories. About 60 percent of bloggers are between the ages of 18 and 44. One in five bloggers update their posts daily. Two-thirds of bloggers are male. Corporate blogging accounts for 14 percent of blogs. About