just use the pygments.appspot.com if there's no pygmentize on the path, rather than as a command line flag

bin/rocco

@@ -7,10 +7,6 @@
 #/   -c, --comment-chars=<chars>
 #/                          The string to recognize as a comment marker
 #/   -o, --output=<dir>     Directory where generated HTML files are written
-#/   -w                     Highlight code using http://pygments.appspot.com
-#/                          instead of pygmentize(1)
-#/
-#/
 #/       --help             Show this help message
 
 require 'optparse'
@@ -40,7 +36,6 @@ ARGV.options { |o|
   o.on("-o", "--output=DIR") { |dir| output_dir = dir }
 	o.on("-l", "--language=LANG") { |lang| options[:language] = lang }
 	o.on("-c", "--comment-chars=CHARS") { |chars| options[:comment_chars] = Regexp.escape(chars) }
-  o.on("-w") { |v| options[:webservice] = v }
   o.on_tail("-h", "--help") { usage($stdout, 0) }
   o.parse!
 } or abort_with_note

lib/rocco.rb

@@ -75,7 +75,6 @@ class Rocco
     defaults = {
       :language      => 'ruby',
       :comment_chars => '#',
-      :webservice    => false
     }
     @options = defaults.merge(options)
     @sources = sources
@@ -162,9 +161,10 @@ class Rocco
     code_stream = code_blocks.join("\n\n# DIVIDER\n\n")
 
     code_html =
-      if @options[:webservice]
+      if `which pygmentize` == ""
+        puts "Warning: pygmentize not installed. Using pygmentize.appspot.com"
         highlight_webservice(code_stream)
-      else
+      elsif 
         highlight_pygmentize(code_stream)
       end
 
@@ -200,6 +200,8 @@ class Rocco
     code_html
   end
   
+  # Pygments is not one of those things that's trivial for a ruby user to install,
+  # so we'll fall back on a webservice to highlight the code if it isn't available.
   def highlight_webservice(code)
     Net::HTTP.post_form(
       URI.parse('http://pygments.appspot.com/'),