Ruby is a dynamic, open-source programming language known for its simplicity and productivity. Created in the mid-1990s by Yukihiro "Matz" Matsumoto, it emphasizes human-friendly syntax, often described as being as readable as English. For web hosting, Ruby is particularly significant because of the Ruby on Rails framework, a powerful tool that streamlines building complex websites and applications.

When choosing a hosting plan for a Ruby-based project, you must ensure the provider supports it. Key hosting features to look for include:

• Ruby Version Manager (RVM) or rbenv support for running the correct Ruby version.
• Compatibility with the Rails framework and other Ruby gems (libraries).
• Passenger, Puma, or Unicorn application server support.
• A database like PostgreSQL or MySQL.

Using Ruby, especially with Rails, allows for rapid development. It follows conventions that reduce the amount of code you need to write, letting you launch features faster. For your hosting, this means you can deploy and scale applications more efficiently. Ensure your host offers SSH access, a reliable deployment process (often via Git), and adequate resources for your app's needs. Ruby is a fantastic choice for startups and established businesses looking to build robust web applications quickly and maintain them with clean, manageable code.