(Online Dating News Blog) Another eHarmony free communication weekend is underway. This is where you can communicate with your matches on eHarmony for free. And there’s not a credit card required when you sign up! Start by registering at eHarmony then when you’ve filled out your profile and started getting matches, communicate for free now through Sunday! If you decide to sign up after the free communication weekend is over, be sure to use a eHarmony Promotion Code to save some money!