WP eCards
With this plugin you can customize your ecards and send via email and social media.
Plugin-Schlagwort: invites
Invitations for Slack
Build a Slack community by allowing your visitors (or registered users) to invite themselves to…
WP Social Broadcast
This plugin will provide your site with unique possibility to viral spreading the news you…
WP Social Invites
WP Social Invites allows your visitors to invite their social friends on your website.