diff --git a/rmarkdown.Rmd b/rmarkdown.Rmd
index 8404d45..f572e22 100644
--- a/rmarkdown.Rmd
+++ b/rmarkdown.Rmd
@@ -11,6 +11,6 @@ Recommendations for learning more about communication:
 
 For writing: [Style: Lessons in Clarity and Grace](http://amzn.com/0321898680), <http://www.americanscientist.org/issues/id.877,y.0,no.,content.true,page.1,css.print/issue.aspx>
 
-For presentations: [slide:ology](http://amzn.com/0596522347), <http://www.howtogiveatalk.com>
+For presentations: [slide:ology](http://amzn.com/0596522347), <http://www.howtogiveatalk.com>, <https://github.com/jtleek/talkguide> (academic).
 
 For expository visulisations: WSJ guide?