The document defines and describes various online terminologies, including email, wikis, social bookmarking, HTML, podcasts, VoIP, online chat, the World Wide Web, streaming media, blogs, social networks, URLs, and web feeds. Email allows digital messaging over the internet. Wikis enable collaborative editing online. Social bookmarking services organize and share bookmarks. HTML is the language used for web pages. Podcasts distribute audio and video files. VoIP uses the internet for phone calls. Online chat provides real-time text messaging. The World Wide Web supports linked documents. Streaming delivers continuous multimedia. Blogs are personal websites. Social networks connect users. URLs uniquely locate files. Web feeds update content.