SendRecurring - SendRecurring allows you to setup, send, and maintain scheduled email reminders.

Radio Replaio - Radio Replaio is a quick or efficient online audio platform that allows users to listen to audio broadcast worldwide with instant processing by connecting to thousands of radio channels.

Recurrr - Send recurring emails

Audiorealm.com - AudioRealm is your destination for thousands of radio stations from all over the globe.

Followup.cc - FollowUp for email is a lightweight productivity suite that keeps your conversations and tasks from slipping through the cracks. Set perfectly timed reminders that arrive at the top of your inbox, right when you need them.

Shortwave Bookmarklet - Shortwave is an extensible quick-search and shortcut bookmark.