+<h2>Other Rulers</h2>
+
+<p>You should check out Michael Charity's very accurate <a
+href="http://www.vendian.org/mncharity/dir3/paper_rulers/">printable
+paper rules</a> if you'd prefer something you can print out.</p>
+
+<p>If your computer is very well configured, you may be able to
+use Steve Pomeroy's <a href="http://staticfree.info/ruler">CSS
+rulers</a> which will not require that you figure out the horizontal
+width of your screen.</p>
+