NewsCloud is another content management system that has a story ranking feature. They have also developed a Facebook app for their service, which is open source as well and available for download. The default layout is slightly more newsy than Digg-like
UnifiedRoot Inc, has developed a new way to process and maintain top level domains (e.g. .com, .net, .info, etc) - now businesses, people, and organizations alike can register their own TLD if it is available.