Java

Twitter API アップデート – follow / leave

follow / leave が API から出来るようになりました。
Twitter4J では未対応です。

やる気があれば今夜にでも。
API Documentation – Twitter Development Talk | Google Groups

Notification Methods (New as of January 16th, 2008!)

follow

Enables notifications for updates from the specified user to the authenticating user. Returns the specified user when successful.
URL: http://twitter.com/notifications/follow/id.format
Formats: xml, json
Parameters:
id. Required. The ID or screen name of the user to follow. Ex: http://twitter.com/notifications/follow/12345.xml or http://twitter.com/notifications/follow/bob.json
leave

Disables notifications for updates from the specified user to the authenticating user. Returns the specified user when successful.
URL: http://twitter.com/notifications/leave/id.format
Formats: xml, json
Parameters:
id. Required. The ID or screen name of the user to leave. Ex: http://twitter.com/notifications/leave/12345.xml or http://twitter.com/notifications/leave/bob.json