This is a plugin for one of the most powerful platforms that enables you to hide any part of your blog. New visitors to your site will see instructions to pay via SMS in order to access the content. The user then sends an SMS and receives a password, which must be entered on the page before access is granted. You decide how long each given password can be used (or for how many activations) via the settings on the SmsCoin website.
Implementation is easy: You add two tags to the page as follows: [smscoinkey] hidden content [/smscoinkey].
Movable Type versions: 4.3