This document provides a high-level overview of various aspects and applications of Web 2.0, grouping them into categories such as bookmarking, collaborative writing, content aggregation, digital storage, education, employment, events, food, games, health, mapping, mobile technology, music, news, networking, organization, philanthropy, photos, real estate, retail, search, social media, sports, travel, video, and web development. The document aims to explain the broad range of services and tools encompassed by the term "Web 2.0".

1. Web 2.0 What is it??? Bookmarking Books Classifieds and Directories Collaborative Writing and Word Processing Content Aggregation and Management Digital Storage and Remote Access Education Employment and Jobs Events Food Fun Stuff Games and Entertainment Genealogy Guides and Reviews Health Hosted Wikis Mapping Applications Maps Mobile Technology Music News and Blog Guides Niche Social Networking Online Desktop / OS Organization Philanthropy Photos and Digital Images Professional Networking Questions and Advice Real Estate Retail Search Social Networking Mainstays Social News - Smaller and Niche Sites Social News - The Big Guys Sport Start Pages Travel Video Visual Arts Web Dev Widgets Overwhelming