This document defines and describes various internet-related terms: - Email is the exchange of digital messages between a sender and recipient(s). Early email required both parties to be online, but now messages can be accessed at any time. - A blog is an informal online publication consisting of discrete posts typically displayed in reverse chronological order. - Instant messaging refers to any communication sent over the internet, similar to a text message on a phone. - Bookmarking services allow users to add, annotate, edit and share bookmarks of web documents. - A URL is a character string that constitutes a reference to an internet resource. - Streaming refers to multimedia that can be watched or listened to live online as it