💝 Affiliazione WP Affiliates plugin allows you to set up an affiliate marketing program for your users tracking their referrals, clicks, and sales

💝 Automessage WordPress Plugin allows you to send custom automated welcome emails for several days after a user joins your site or network.

💝 E-Newsletter plugin adds a professional management system for your email newsletter and subscribers to your WordPress website

💝 Invite Plugin allows your users to send out invitations to friends to view or join your WordPress site.

💝 The Private Messaging WordPress plugin from WPMUDEV allows your users to chat and share files safely on your website through direct messages.

💝 Social Marketing plugin allows you to offer incentives to users sharing your products or services on Facebook, Twitter, Google+ or LinkedIn.

💝 Subscribe by Email Plugin allows your visitors to be automatically notified about your latest content in email digests

💝 Ultimate Facebook plugin fully integrates your WordPress blog with Facebook (auto post to your Facebook page or wall

💝 Simple Ads WordPress Plugin allows you to insert ads on posts and pages across a multisite network

💝 Popup pro plugin allows you to add highly flexible and customizable popups for advertising or special promotions to your site

💝 The Easygram WordPress Plugin allows you to create amazing posts or galleries on your WordPress Site which include your Instagram photos

💝 The Social Commerce WordPress Plugin converts your WordPress Site into a Facebook-friendly destination – especially for your social eCommerce customers