AlternativeTo - AlternativeTo lets you find apps and software for Windows, Mac, Linux, iPhone, iPad, Android, Android Tablets, Web Apps, Online, Windows Tablets and more by recommending alternatives to apps you already know.
Top Similar Sites - Top Similar Sites helps you find similar, alternative or related sites to any website instantly.
Free Software Directory - The Free Software Directory is a project of the Free Software Foundation (FSF) and United Nations...
SimilarSites - Easily find more sites like those you like.
JSter - JSter is a community-driven catalog of the most useful javascript libraries.
Sites Like - Siteslike opened it's doors to the public on the 4th of december in 2008, since that time...