Paywall
A paywall is a method of restricting access to content via a paid subscription. Beginning in the mid-2010s, newspapers started implementing paywalls on their websites as a way to increase revenue after years of decline in paid print readership and advertising revenue. In academics, research papers are often subject to a paywall and are available via academic libraries that subscribe.
Outpost Firewall Pro
Outpost Firewall Pro allows the user to specifically define how a PC application connects to the Internet. This is known as the "Rules Wizard" mode, or policy, and is the default behavior for the program. In this mode, Outpost Firewall Pro displays a prompt each time a new process attempts network access or when a process requests a connection that was not covered by its pre-validated rules. The idea is to let the user decide whether an application should be allowed a network connection to a specific address, port or protocol. Outpost Firewall includes pre-set rules for many popular applications. Users could optionally submit rules they had created.