The organisation who have a twitter account should maintain their twitter status in getting more people to keep following them. Here are some tips that I want to review based on this article; http://nonprofits.change.org/blog/view/10_twitter_tips_for_nonprofit_organizations
1. Be nice to others
You have to ReTweet what others Tweet so that they feel appreciated in what they say and say something nice to people. It is a place where there is a need to have a two-way interaction among people. This will make good impression on others and more people will want to follow you.
2. Follow the people who have follow you
It is not fair to others if they follow you and you tend not to follow them. It is biased relationship. One has to connect with their followers in order to attract more people in what ever that interest you. Also, you will be more successful in doing so.
3. Try not to tweet on your own content
You have to tweet articles, blogs by other non-profitable organisation. It builds a good relationship with them and impress the reader that not only do you update on your own progressive work but also to other non-profitable oragnisation too. You may have a good chance at winning the hearts of people to follow you.
4. Keep your tweets to at least 5 per day not more than 6!
Always think that less is more. People tend to look forward to more tweets from you if you make it sweet and simple and easy to remember. It is best if you tweet on something that is important to let people know about it.
In conclusion, I agree to most of the tips that were laid before me. It is true that to keep up with your followers, you have to undersatnd them and appreciate their tweets too. For non-profitable organization is a good opportunity for them to create awareness on what they are doing to provide for the needy in any form of help.

Source: http://www.freemarketmediagroup.com/internet-marketing/category/twitter/