A very small plugin that forces users to login to view blog content.
Force Login is a simple lightweight plugin that requires visitors to log in to interact with the website.
Makes your wordpress blog private unless the user is logged in, optionally setting a minium user level. Modified from http://wordpress.org/extend/plug
Forces all anonymous users to login except the user connects from special ip ranges or a specific IP4 address.
Very small plugin that forces users to login to view blog content.