Common online terminologies are defined and explained. Email refers to electronic mail that allows digital messages to be exchanged over the internet or networks. Blogs are websites that display posts in reverse chronological order. Online chat refers to real-time text message transmission between users. Social bookmarking enables users to add, annotate, and share bookmarks online. Uniform resource locators (URLs) specify the location of resources on the internet. Streaming media delivers audio and video content continuously as it is received. Podcasts are downloadable episodic digital audio files. Voice over internet protocol (VoIP) delivers voice calls over IP networks like the internet. Wikis are websites that allow users to collaboratively add, modify, and delete content.