Here are Premium WordPress Plugins that you can purchase and if needed, WordSprung can install them for you.
- OIOpublisher – OIOpublisher is an advanced ad management solution that lets you take control of your ad space. OIOpublisher is PHP based and includes a WordPress plugin for easy integration with your WordPress powered site.
- WishList Member – WishList Member is an excellent plugin package that will turn your WordPress powered website and/or blog into a membership based website.
(Note that some of these are affiliate links.)