1. A BLOG is a publication of personal thoughts, experiences, and web links. It is updated frequently and is usually a mixture of what is happening in a person's life and what is happening on the web or in the media.
2. Web 2.0 is a perceived or proposed second generation of the web. This is were the web has evolved and improved over time and now offers better and more up to date services like blogs, wiki’s, social networking sites etc.
3. Social networking is basically the new generation of computer websites such as myspace, facebook, bebo etc.. where people get to interact with each other, share information and create and connect to other friends profiles.
4. You can create an account to look and upload pictures or videos of yourself & freinds and share them around thats the main purpose of a blog.
5. There is online security such as anti virus, spam filters & firewall. When u decide to log on into your own personal blogger or myspace they ask you to login which is your own email & the password you have chosen to use to access your page this insures that no one else can access your page without your password.