The document defines common online terminologies through concise explanations. Email is defined as electronic mail that allows sending and receiving messages over the internet. Blogs are websites that display posts in reverse chronological order. Online chats refer to real-time text message transmission between users. Social bookmarking involves tagging and saving websites online to share with others. URLs identify resources on the world wide web through a standardized address format. Streaming delivers multimedia content that plays as it is received. Podcasts are episodic audio/video files that can be subscribed to for download.