Columns
To use multiple columns in your document, use the "multicol" package.
Just add it to your opening declaration like so:
\usepackage{palatino, url, multicol}
Then, to use multiple columns, invoke it like this:
\begin{multicols}{2}{
Department of English\\
P.O. Box 117310\\
University of Florida\\
Gainesville, FL, 32611-7310\\
(352) 392-6650
111 My Home address\\
Gainesville, FL 32611\\
(352) 555-1111 (H)\\
(352) 555-2222 (M)
}
\end{multicols}
That will make a two-column area in your document.
You can control the space between the columns with the \columnsep command. Invoke it before you invoke columns like this: \setlength{\columnsep{2in}}