What is a social network?
A social network is a social structure made up of individuals (or organizations) called “nodes”, which are tied (connected) by one or more specific types of interdependency, such as friendship, kinship, common interest, financial exchange, dislike, sexual relationships, or relationships of beliefs, knowledge or prestige. [source: Wikipedia (http://en.wikipedia.org/wiki/Social_network)]
What is social media?
Social media are the means or channels that allow social networks to be created. Examples of social media are blogs, wikis, discussion forums, and other web platforms that allow intercommunication (youtube, facebook, flickr, etc)
What is social networking?
Lately, social networking is being used more and more as a verb to describe the act of connecting, and collaborating with others through social media platforms.
What is a blog?
A blog (short for weblog) is a website where entries are written in chronological order and commonly displayed in reverse chronological order.
A Blog is an excellent means of communication within a community, providing commentary or news on particular subjects; and readers have the ability to leave interactive comments. A blog can contain text, images, videos, audio (MP3 and podcasts), and to other media related to its topic, such as blogs and websites.