How does trending topic on twitter work? Why does a 2nd spot trending topic disappeared suddenly on the TTs?

[kvndz.kiindz]

How does trending topic on twitter work? Why does a 2nd spot trending topic disappeared suddenly on the trending topics? For example, a 2nd spot trending topic "#saranghaeyokimheechul" had disappeared suddenly. Thanks ^^;;

[Keith Bentley]

Twitter updates really quickly. People are Tweeting new things all the time which can trend within 5 minutes of becoming breaking news.

Another possibility is regulation, if a topic begins trending and suddenly disappears, it could be inappropriate or just become unpopular. The internet world is so quick you can blink your eyes and new websites are huge, topics are gone or have become TT's.

I saw a chance to win a sony Vaio laptop go trending from @Shopow_ and before I got chance it vanished! I ended up knowing a friend who had entered the draw so I tracked them down.

Hope this answers your Question.