CasterSoundboard - A soundboard for hot-keying and playing back sounds. (For podcasting)

Cakemail - Email marketing and transactional emails that deliver. Try it for FREE!

JN Soundboard - An open-source hotkey soundboard program

Salesfusion - Salesfusion provides an easy to use marketing automation platform that allows sales and marketing teams to be successful.

Soundplant - Play sound files with the computer keyboard

MailChimp - MailChimp is the best way to design, send, and share email newsletters.