The World Wide Web was based on a protocol developed by Tim Berners-Lee Apple the U.S. government Microsoft Question 22 The "fathers" of the Internet are Vinton Cerf and Bill Gates Tim Berners-Lee Robert Cailliau Robert Kahn Question 23 ------- is a professional, business-oriented social networking site. LinkedIn Flickr Twitter Picasa Question 24 All of the following are tips for professional e-mail etiquette EXCEPT be concise and to the point use spell-checker and proofread before sending include a meaningful subject line use abbreviations such as u. " and "BRB" to keep the e-mail message shorter