Lobste.rs
Lobste.rs is an awesome Hacker News alternative. It is a Rails codebase and uses a SQL (MySQL in production) backend for the database and Sphinx for the search engine.
Hacker News is a social news website about computer hacking and startup companies, run by Paul Graham's investment fund and startup incubator, Y Combinator.
Ruby is a dynamic, open source programming language with a focus on simplicity and productivity. It has an elegant syntax that is natural to read and easy to write.
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