Email-reminder allows users to define events that they want to be reminded of by email. Possible events include birthdays, anniversaries, weekly, monthly, and yearly events. Reminders can be sent on the day of the event and a few days beforehand. It uses a cron job to checks for events and send reminders once a day, and a simple GUI that allows users to edit the reminders they want to receive.
safe-rm is intended to prevent the accidental deletion of important files by replacing /bin/rm with a wrapper that checks the given arguments against a configurable blacklist of files and directories that should never be removed. Users who attempt to delete one of these protected files or directories will not be able to do so and will be shown a warning message instead. Protected paths can be set both at the site and user levels.
Libravatar is software that allows domain owners to control how avatars (profile pictures) are served to other Web sites. It implements a modified version of the Gravatar API, adding a few features such as federation, LDAP authentication, and OpenID support. Libravatar powers libravatar.org.