When a new question is asked in a category, this plugin will send an email notification to all users who marked the category as a favourite (star).
Plugin written for http://www.question2answer.org/.
Download this source-code and save it as qa-plugins/qa-category-email-notifications/ under the Question2Answer installation directory.
"Star" any category in Question2Answer and you will receive email notification when a new question been asked.
Note: There's currently no way to enable/disable this plugin from the Admin pages. By disabling notifications, this plugin will also stop sending notifications.