Web 2.0 may be an overhyped buzzword, a bubble and tough to pin a definition upon. Underneath all of that froth, however, there are some fundamentally transformative technologies that have steadily become part of the lives of consumers and enterprise users alike.

Web 2.0 is the popular term for advanced Internet technology and applications, the specifics of which we'll quiz you on below. The expression was originally coined by O'Reilly Media and MediaLive International in 2004, following a conference dealing with next-generation Web concepts and issues. One of the most significant differences between Web 2.0 and the traditional World Wide Web (retroactively referred to as Web 1.0) is greater collaboration among Internet users and other users, content providers, and enterprises.

Take the following quiz and find out what your Web 2.0 IQ is. If you manage to gain a perfect score, we'll publish your name in the Word of the Day as a true Web 2.0 guru. Good luck!

And, if you're left still wondering what Web 2.0 is all about, trying watching this video: Web 2.0 explained.

1. This is a server program, from "fast" in the Hawaiian language, that allows users to collaborate in forming the content of a Web site. Any user can edit the site content, including other users' contributions, using a regular Web browser. What is it?
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2. This is a personal online journal that is frequently updated and intended for general public consumption. At the most basic level, it is defined by the format: a series of entries posted to a single page in reverse-chronological order.The most popular examples are among the most popular Web sites in the world. What is it?
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3. This is an XML-based vocabulary that specifies a means of describing news or other Web content that is available for "feeding" (distribution or syndication) from an online publisher to Web users. What is it?
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4. This is the preparation and distribution of audio files using RSS to the computers of subscribed users. These files may then be uploaded to digital music or multimedia players. What is it?
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5. This is a Web page or application that integrates complementary elements from two or more sources. Popular versions often combine Google Maps and other information, like real estate or weather data. What is it?
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6. This is a user-defined taxonomy system for bookmarks. Such a taxonomy is sometimes called a "folksonomy" and the bookmarks are referred to as tags. Popular versions include del.icio.us, Furl and StumbleUpon. What is it?
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7. This is a method of building interactive applications for the Web that process user requests immediately, unlike an HTTP request, during which users must wait for a whole new page to load. The approach combines several programming tools including JavaScript, DHTML, XML, CSS, DOM), and XMLHttpRequest. What is it? (If you need a hint, make sure to stop by this site.)
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8. Recently, many netizens have begun communicating using Twitter, Jaiku, Pownce and other similar platforms, further intermingling online and offline worlds in short bursts, often using SMS. What is it?
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9. There's been plenty of hype surrounding this massive multiplayer universe (MMU) set in a 3D virtual world. The former CTO of RealNetworks, Philip Rosedale, intended the virtual world to closely mirror the "metaverse," a version of the Internet set in the near-future as described in the cyberpunk novel "Snow Crash" written by Neal Stephenson. What is it?
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10. Originally founded as a venue for aspiring musicians and bands to share music and concert dates, this site has grown into a complex (and rather ugly) spawling network where users can create profiles, including photographs, blogs, music or movie preferences, embed videos and many kinds of widgets. It also happens to be the most popular Web site in the world.What is it?
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11. This is the practice of expanding the number of one's business and/or social contacts by making connections through individuals. While the concept has gone on almost as long as societies themselves have existed, the unparalleled potential of the Internet to promote such connections is only now being fully recognized and exploited, through Web-based groups established for that purpose. Facebook is currently the poster child for the phenomenon, though the answer to question 10 is another rather well-known example. What is it?
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12. This open source Web browser with advanced features is based on the Firefox code and was released for preview in October 2005 by a group of developers in Palo Alto, California. The browser was developed to facilitate the development of Web 2.0 technologies, including integration of many services, though in the years since most of the functionalities built into it have been made available for Firefox. What is it?
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13. According to ArsTechnica, this word happens to be one of the most hated terms on the Internet. If you incorporate video of yourself into your online personal journal, however, you're doing this. What is it?
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14. This is the act of taking a function traditionally performed by an employee and outsourcing it to an undefined, generally large group of people using information technology. What is it?
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15. Discussions of Web 2.0 may often turn to the next new thing: Web 3.0. What's another "wordy" way of describing the next iteration of the online world?
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Looking for more reference material on Web 2.0?

Make sure to review and bookmark the following handy references from WhatIs.com:

Podcasting Terms: Glossary 
Blog Terms Glossary
Fast Guide to Collaborative Software

Executive Guide: Web 2.0 technologies for CIOs 
Web 2.0 technologies, including blogs, mashups and Ajax, are changing the way people communicate online and could have profound implications for collaboration within the enterprise.

Ten ways to improve testing, performance of Web 2.0 applications 
Web 2.0 is forcing organizations to update their software development and testing strategies. Here are 10 things you can do to ensure that your QA testing is sophisticated, thorough and complete.

Web 2.0: Just another technology?
Wikis, blogs and other social networking technologies are all the talk -- but are they a real threat to CIOs?

Too many CIOs fail to ride Web 2.0 wave
CIOs are looking beyond the Web 2.0 hype and using the technology to reshape their companies.

Web 2.0 integration poses challenges and rewards 
Web 2.0 technologies are in demand by workers and customers alike. Implementing them into existing IT infrastructures and managing them effectively are the next steps for SMBs.

Wikis in the enterprise face security, compliance challenges 
As more CIOs consider enterprise adoption of wikis, security, management control and compliance remain their top concerns.

Security issues seen hampering Web 2.0
Web browser developers say they are still plagued with security issues that may hamper the development and adoption of Web 2.0.

Black Hat 2007: Researchers demonstrate webmail, social networking vulnerabilities
Web 2.0 is fundamentally broken -- or so say researchers at Errata Security. They have developed tools that sniff out users of Web-based email and social-networking sites over Wi-Fi and hijacks their sessions.

If you're still hungry for more quizzes, Jim Rapoza also put together a Web 2.0 IQ test.

Or truly test your hype awareness (and Star Wars trivia knowledge) with this quiz, Web 2.0 or Star Wars character?