WebSite Blocker is a nice, free program only available for Windows, being part of the category Networking software with subcategory Network security (more specifically VPNs).
More about WebSite Blocker
The current version of the software is 1.0 and its last update happened on 1/6/2011. It's available for users with the operating system Windows 95 and prior versions, and you can get it in English.
Since we added this program to our catalog in 2011, it has managed to reach 69,927 installations, and last week it achieved 79 installations.
About the download, WebSite Blocker is a slick software that requires less storage than many programs in the category Networking software. It's a program frequently downloaded in some countries such as India, Pakistan, and Azerbaijan.