documentclass[12pt,letterpaper, onecolumn]{article}
setlength{topmargin}{0in}
title{Blah Blah Cool}
date {}

begin{document}
    maketitle
    section{Foo}
    foobar foobar foobar...
end{document}

documentclass[11pt]{article}
usepackage[T1]{fontenc}
usepackage{titling}

setlength{droptitle}{-10em}   % This is your set screw

author{The Author}
title{The Title}

begin{document}
  maketitle
end{document}

documentclass[12pt,letterpaper, onecolumn]{article}

begin{document}

begingroup
  centering
  LARGE Blah Blah Cool\[1.5em]
  large The Authorpar
endgroup

section{Foo}
    foobar foobar foobar...

end{document}

documentclass[a4paper,11pt]{article}

title{vspace{-2.0cm}Stuff}
author{Me Myself}

begin{document}
maketitle

end{document}

documentclass[12pt,letterpaper,onecolumn]{article}

makeatletter
def@maketitle{%
  newpage
%  null% DELETED
%  vskip 2em% DELETED
  begin{center}%
  let footnote thanks
    {LARGE @title par}%
    vskip 1.5em%
    {large
      lineskip .5em%
      begin{tabular}[t]{c}%
        @author
      end{tabular}par}%
    vskip 1em%
    {large @date}%
  end{center}%
  par
  vskip 1.5em}
makeatother

title{Blah Blah Cool}
date {}

begin{document}
    maketitle
    section{Foo}
    foobar foobar foobar...
end{document}