A blog is a type of website or is part of a website.
A blog is a personal diary, that is maintain by an individual with regular entries of commentary, description of events, or other material such as graphics and videos.
Most of the blogs that created are interactive, letting visitors leave comments and send messages to each other via widget on the blog. It's this interactivity that distinguishes them from other static websites.
A blog can be what yo want it to be, for instants you can create one on a more personal level and write on it your own personal thoughts.
Blogs enable people to have a voice and connect with other.