cmsMerchant enables you to sell Membership Subscriptions, Tangible and Digital Goods, handles Donations and lists Top Donators, secures content on your PostNuke or MD-Pro site. Comes with a Payment Plugins for PayPal, WorldPay, Authorize.net, iPayment, 2CheckOut, StormPay and also has a plugin to allow

Randomizer script allows you to start a fully featured turnkey affiliate system. This randomizer script allows you to offer paid membership to your visitors, by paying the affiliate fee, a randomly chosen member and the administrator fee of the site. These fees are decided

This plugin will change your default wordpress installation to a full members only blog and you will be able to select if you want to give access to logged in users only or restrict access to certain posts, pages or categories.