This Plugin allows you to manage products and receive payments using authorize.net merchant account.
This is a Payment plugin that provides a points by Authorize.net which allows user buy points for purchase.
EC Authorize.net is easy to use Wordpress Plugin and can be installed in just a few minutes.
WP Service Payment Form With Authorize.net allows to accept payments from credit/debit cards using Authorize.net Gateway with captcha.
RS-members is wordpress most powerful and free membership plugin many many features are include there.
Sell Restrict Content Pro memberships through the Authorize.net payment gateway.