If Web 1.0 was the read-only web, and Web 2.0 was the participation (write) web, then Web 3.0 may be the read, write, and execute web. Tim Berners-Lee had referred to Web 3.0 as the Semantic Web , a system of autonomous agents, which are software programs that respond to events. More @Wikipedia
Hover over any link to get a description of the article. Please note that search keywords are sometimes hidden within the full article and don't appear in the description or title.