simple ruby version management: rbenv
The DOCTYPE is a required preamble for HTML5 websites.
Websites using https protocol.
UTF-8 (8-bit UCS/Unicode Transformation Format) is a variable-length character encoding for Unicode. It is the preferred encoding for web pages.
These websites are related to rbenv.org in terms of content, traffic and structure
github.com
jonathan-jackson.net
rvm.io
rubyinside.com
rubyflewtoo.blogspot.com
octopress.org
codeography.com
himawarien.net