Sometimes the list of friends we follow would become too big to have a maintainable status updates. Removing someone from your following list means that you will no longer receive his or her updates.
API Usage:

• URL: http://api.twitter.com/1/statuses/update.json
• Request Parameters:
  • Auth token : This is the secret key that uniquely identifies a user
  • Status : The status message to be posted.
• Request Method: POST
• Response data: Returns HTTP status 403 when the status message is more than 140 characters or when the current status is the same text as the most recently posted status. On success, all the meta information of the status message and the authenticated user is returned.