Quoted from http://www.themorningnews.org/archives/the_thoughtful_user_guide/writing_my_twitter_etiquette_article_14_ways_to_use_twitter_politely.php
Quoted from http://www.themorningnews.org/archives/the_thoughtful_user_guide/writing_my_twitter_etiquette_article_14_ways_to_use_twitter_politely.php