Ruby Certification
After completing your study of the Ruby Study Notes here, it would be beneficial for you to give the Ruby - Basic Certification examination at the JavaBlackBelt Certification Community. The objective of this certification is:
To test knowledge of the language core syntax and OO concepts. You should understand that Ruby is a genuine object-oriented language and everything it manipulates with, are objects. No specific API knowledge is required. Only the most frequently used built-in classes and methods are covered. The knowledge of any external libraries is not necessary. The given exam covers Ruby 1.8.x features and syntax.
Danny's Blog has an interview with Mr. John Rizzo, one of JavaBlackBelt's founders. Here, John talks about the Ruby exam on JavaBlackBelt.
You can also contribute your code to or comment upon Peter Szinek's article - Implementing 15 exercises for learning a new programming language.
You can check out for jobs in Ruby and Rails.
You can give the Ruby Certification examination here.
Since you are investing your future in Ruby and Rails, do join (for free) the Working With Rails community and recommend me there. Thanks.
All the best.