Referral System for WooCommerce. Each customer has referral link that rewards them with a coupon after someone makes a purchase through their link
A fully customisable fundraising thermometer with PayPal integration, custom skins and support for multiple vertical and horizontal thermometers.
Simple widget that displays the current status of a fundraising goal.
The core plugin for WPSponsorship, it allows users to invite their friends to your site via E-mail