Clicking on the Weblock icon, name, and version number will open your default web browser to Weblock's webpage

Version Checking is on by default, and allows Weblock to check Digital Cow Software's servers for new versions of Weblock. No personal information is transmitted to DCS. Unchecking "Automatically check for updates" will prevent Weblock from performing this check automatically when it is opened in System Preferences. You can use the "Check" button to manually determine if new updates are available. The date and time of your last version check are displayed below

The last option in this tab is a button that brings you to paypal.com in your default web browser, where you can donate money to Digital Cow Software to show your appreciation for all of DCS's hard work.