how can i get more twitter followers?

Post interesting tweets. That’s about it.
References :

trademtweets.com
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Do you want more followers, or do you want people of influence that are interested in you? Followers are like baseball cards that are collected and rarely ever looked at or shown to others. If you tweet interesting, thought provoking content, IE: blog posts, articles, videos, etc., and others like it, they’ll share it and some will follow you. Herding followers by using a thrid party application like "Blast Follow" can get you booted off Twitter…I should know:)

Most non-really-famous people will follow you back if you initiate contact. Do a search for some topics of interest, or a target group that would be more likely to follow you…follow ten and see how many follow you back. More often than not, its 30-40% !! Check out the links below for additional help and good luck ! Please read the blog below about the tortoise and the hare…It may save you from getting booted off Twitter ! Also, the Chris Brogan article is killer !
References :
http://www.cliquethru.com/_blog/CliqueTalk/post/Social_Media_Case_Study_The_Tortise_and_the_Hare/

http://www.wikihow.com/Get-More-Followers-on-Twitter

http://www.chrisbrogan.com/50-power-twitter-tips/?utm_source=twitterfeed&utm_medium=twitter&utm_campaign=Feed%3A+chrisbrogandotcom+%28%5Bchrisbrogan.com%5D%29&utm_content=Twitter

there are some ways to get them, if you check http://twitter-future.com or http://twtok.info , hope it can help you.
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You can get more followers from the sites which are connected to twitter and the sites which are connected to the other countries and the site which has got many communities to make a group of friends at one place .You can find all these features in a site which is social networking site like twitter and it even connected to the other countries also.So for further assistance you can go through the link below.

Thank you.
References :
http://www.worldstuffer.com/