Web 2.0 refers to changes in World Wide Web technology and was coined at an O'Reilly conference. Web 1.0 preceded it. A web is a system of documents on the internet, email allows written communication through servers, and chat enables real-time online conversations. Forums allow discussion of topics, blogs display comments and media in reverse chronological order by authors, and wikis are collaboratively edited pages. Forums have public discussions, blogs can be private with authors and comments, and wikis enable many people to jointly write and edit articles.

1. Questions # 3, 4 and 5

2. Question 3: What is web 2.0? Web 2.0 is a term used to describe the latest changes in the World Wide Web technology

3. Who invented the term? The use of the term began with a conference brainstorming session between O’Reilly and Media Live International.

4. Is there a web 1.0? Yes, there is

5. QUESTION 4 What is a web? It is a superior dominium in internet . What is an e-mail? It is a store and forward method of written communication, using an account or principal server. What is a chat? It is a conversation on line in real time.

6. WHAT DO THEY HAVE IN COMMON? The three terms refer to communication, and refer to internet use.

7. WHAT MAKES THEM DIFFERENT? The web is a system of documents The e-mail is different of chat because using the second you can have a conversation obtaining responses instantly.

8. QUESTION 5 What is a forum? It is a message board system which provides members to general content in form of discussion of a particular subject. What is a blog? It is a site where the user can display comments, photos, videos, and music. the entries go in inverse order, from the newest to the oldest. What is a wiki? It is a page or pages where a community of users can collaborate with information or their opinion.

9. WHAT DO THEY HAVE IN COMMON? The opinions can be read and posted by the other members and they can share them to the group.

10. WHAT MAKES THEM DIFFERENT? BLOG: private site one or various principal authors public entries about proposed themes comments are allowed

11. WHAT MAKES THEM DIFFERENT? FORUM: public site many people can propose themes ask questions expose opinions

12. WHAT MAKES THEM DIFFERENT? WIKI: a kind of web designed for collaborative work the wiki page can be modified many people write an article