1. Btrace - a tracing tool for java. https://github.com/btraceio/btrace. Btrace - a tracing tool for java. https://github.com/btraceio/btrace.
2. Calculate GS1 check digit. https://www.gs1.org/how-calculate-check-digit-manually. Calculate GS1 check digit. https://www.gs1.org/how-calculate-check-digit-manually.
3. Codeplex. https://www.codeplex.com/. Codeplex. https://www.codeplex.com/.
4. Enterprise version of the proprietary github. https://enterprise.github.com/home. Enterprise version of the proprietary github. https://enterprise.github.com/home.
5. GitHubGist. https://gist.github.com/. GitHubGist. https://gist.github.com/.