There is a website (http://selfintro.xguru.net) for new users to introduce themselves and find others who shares common interests to follow.
We extracted id list from this web site and crawled their user information, tweets, and social links (following, follower information)
If you would like to use our data set, please fill this form (http://bit.ly/koreantwitter)
*Data is only available on a condition that the paper listed below is cited by your work.
Description of the format of the data can be found here.