Update readme.

README.md

@@ -27,6 +27,26 @@ Into:
 <p>Apples, bananas and&nbsp;oranges.</p>
 ```
 
+### Comparison to other utilities
+
+Other similar utilities include:
+
+* [jQWidont](http://davecardwell.co.uk/javascript/jquery/plugins/jquery-widont/jqwidont-uncompressed.js)
+* [Widow Fix](http://plugins.jquery.com/project/widowfix)
+* [Widont for WordPress](http://www.shauninman.com/archive/2007/01/03/widont_2_1_wordpress_plugin).
+
+As of time of writing, *Unorphan* works better than these because:
+
+* It does not mangle HTML at all (it operates on text nodes), you can be sure that your HTML
+tags will always be intact.
+
+* It does not rewrite `innerHTML`, causing your elements to unneededly reinitialize, and possibly
+losing events and data in the elements.
+
+* It's extremely small. (400 bytes)
+
+* It does the manipulation on the client side, making no impact to your in-page SEO efforts.
+
 ### Acknowledgements
 
 Original idea and implementation by [Shawn