"ULMUL" is an original Ultra Lightweight MarkUp Language. ULMUL texts can be converted into HTML5 with "ulmul2html5" command and into XHTML with "ulmul2xhtml" command. TeX style equations are converted into MathML. ULMUL is written in Ruby. You can also use ulmul.rb as a library. Homepage of ULMUL: http://ulmul.rubyforge.org/ Download ULMUL from: http://rubyforge.org/projects/ulmul or http://rubyg