easy development of powerful web databases; L<Jifty>, which does a great
deal of automation in helping to set up web sites with many complex
features; and Ruby on Rails (see L<http://www.rubyonrails.org>), written
-of course in Ruby and among the most popular web development systems. Is
-it not the purpose of this document to criticize or even briefly
+of course in Ruby and among the most popular web development systems. It
+is not the purpose of this document to criticize or even briefly
evaluate these other frameworks; they may be useful for you and if so we
encourage you to give them a try.