diff --git a/README.md b/README.md
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@@ -3,11 +3,11 @@ GSS engine [![Build Status](https://travis-ci.org/gss/engine.png?branch=master)]
 
 [![Cross-browser testing status](https://saucelabs.com/browser-matrix/gss-engine.svg)](https://saucelabs.com/u/gss-engine)
 
-Compiles and runs Grid Style Sheet (GSS) rules. GSS is an implementation of Badros & Borning's [Constraint Cascading Style Sheets](http://www.cs.washington.edu/research/constraints/web/ccss-uwtr.pdf), enabling far better layout control through building relational rules between different elements.
+Compiles and runs Grid Style Sheet (GSS) rules. GSS is an implementation of Badros & Borning's [Constraint Cascading Style Sheets](http://constraints.cs.washington.edu/web/ccss-uwtr.pdf), enabling far better layout control through building relational rules between different elements.
 
 GSS supports the following syntaxes for defining layout rules:
 
-* [CCSS](https://github.com/gss/ccss-compiler#readme) - direct constraints related to position and size of DOM elements
+* [CCSS](https://github.com/gss/parser#readme) - direct constraints related to position and size of DOM elements
 * [VFL](https://github.com/gss/vfl-compiler#readme) - horizontal and vertical spacing constraints based on [Apple's Visual Format Language](https://developer.apple.com/library/ios/documentation/userexperience/conceptual/AutolayoutPG/VisualFormatLanguage/VisualFormatLanguage.html)
 
 Please refer to <http://gridstylesheets.org/> for documentation and usage instructions.