Shary - Place a call to action in every link you Share. Free Forever
Linkiro - Increase your conversion rate! Add a call-to-action to links you share
Rite.ly - Rite.ly is a Call-to-action (CTA) header that can be used in any page.
RightMessage - Ask the right questions, pitch the perfect offer
Scale Model - Connect with more of the people who really matter
Allons - Embed audio and video messages on documents and websites