diff --git a/standard-ml.html.markdown b/standard-ml.html.markdown
index 0ba42f39..9d6b104d 100644
--- a/standard-ml.html.markdown
+++ b/standard-ml.html.markdown
@@ -2,8 +2,8 @@
language: "Standard ML"
filename: standardml.sml
contributors:
- - ["Simon Shine", "http://shine.eu.org/"]
- - ["David Pedersen", "http://lonelyproton.com/"]
+ - ["Simon Shine", "https://simonshine.dk/"]
+ - ["David Pedersen", "https://github.com/davidpdrsn"]
- ["James Baker", "http://www.jbaker.io/"]
- ["Leo Zovic", "http://langnostic.inaimathi.ca/"]
- ["Chris Wilson", "http://sencjw.com/"]
@@ -479,3 +479,4 @@ fun decrement_ret x y = (x := !x - 1; y)
* Follow the Coursera course [Programming Languages](https://www.coursera.org/course/proglang).
* Read *[ML for the Working Programmer](https://www.cl.cam.ac.uk/~lp15/MLbook/pub-details.html)* by Larry C. Paulson.
* Use [StackOverflow's sml tag](http://stackoverflow.com/questions/tagged/sml).
+* Solve exercises on [Exercism.io's Standard ML track](https://exercism.io/tracks/sml).