@@ -126,4 +126,4 @@ Links

  * [dot2tex](https://github.com/kjellmf/dot2tex) -- python script to convert xdot output from Graphviz to a series of PSTricks or PGF/TikZ commands.

- * The [pypy project](http://codespeak.net/pypy/) also includes an [interactive dot viewer based on graphviz's plain format and the pygame library](http://morepypy.blogspot.com/2008/01/visualizing-python-tokenizer.html).

+ * The [PyPy project](http://pypy.org/) also includes an [interactive dot viewer based on graphviz's plain format and the pygame library](http://morepypy.blogspot.com/2008/01/visualizing-python-tokenizer.html).