Watch the videos.

A very cool feature of SQLite is the ability to create virtual tables. This allows for querying data outside of SQLite itself yet still being able to join it with regular tables in the SQLite DB.

Yet another high-performance HTTP server.

Merb is a Ruby MVC web framework with a goal of being lightweight. In particular it does not come with an ORM or template language out-of-the-box. It's also fast.

HAProxy is a free, very fast and reliable solution offering high availability, load balancing, and proxying for TCP and HTTP-based applications.

Really cool way to visualize a log file. Written in Ruby.