This list focuses on sites that provide a lot of links of open source applications, top places to download open source software.
Project Hosting Sites
1. SourceForge:The "mother lode" for open source projects, SourceForge hosts nearly 280,000 projects (at last count). It serves more than 2 million downloads a day and includes apps and tools in a wide variety of categories.
GitHub hosts both public and private projects that use the open source Git version control system. This "social coding" site currently hosts more than 1.7 million repositories, including many open source projects.
3. Google Code:
Google offers free hosting for open source projects using the Subversion or Mercurial version control systems. It offers 2 GB of storage, integrated code review tools, a wiki, and an issue tracker. The Google Code site also provides links to Google's many publicly available APIs and other developer tools.
4. Eclipse Labs:
Also hosted by Google Code, Eclipse Labs is a searchable repository of projects built on the Eclipse platform. Note that these are not official Eclipse Foundation projects.
Like GitHub, BitBucket hosts both public and private projects. On this site, open source projects and private projects with fewer than five users are free. It hosts more than 48,000 repositories, many of which are searchable on the site.