I'd think it would be pretty easy as an HTML/Web app. Say you have 100 poems. Put each on it's own web page with a next poem button.
Name each poem numerically 1.html, 2.HTML, ...
Now use javacript to select a random number from one to one hundred. Stick this into the target address for the next poem button. So the next poem might take you to:
"http:\\www.mypoems.com\" + random-number + ".html". Which might translate to:
http:\\
www.mypoems.com\56.html