blog:a way on the internet to share your opinions, feelings (a free place to write).
hosts:
blogger.com
blogtext.org
wordpress.com
tblog.com
aeonity.com
blogger: share thoughts and photos. Make a profile and decide who can see it. You can go mobile with it and has a bigger size for photos, words and videos.
twitter: answers has to be under 140 characters. for people to stay in touch and post what your doing.
facebook: Profile to add friends, photos, join networks and add/receive messages. Mostly college-aged.
Myspace: Network for people, blogs, photos, etc. Design your own profile with creativity of designing own layout.
linkedin: business socialization. professional profile.
Wordpress: software made especially for blogging. Used by businesses and can cost money.
TypePad: largest paid blogging service. Professional bloggers and businesses. Has five account levels.