diff --git a/README.md b/README.md
index 0712991..f9c7b89 100644
--- a/README.md
+++ b/README.md
@@ -421,6 +421,14 @@ A curated list of awesome Python frameworks, libraries and software. Inspired by
 * [Deform](http://deform.readthedocs.org/en/latest/) - Python HTML form generation library influenced by the formish form generation library.
 * [WTForms](http://wtforms.readthedocs.org/) - A flexible forms validation and rendering library.
 
+## Data Validation
+
+*Libraries for validating data. Used for forms in many cases.*
+
+* [voluptuous](https://github.com/alecthomas/voluptuous) - A Python data validation library. It is primarily intended for validating data coming into Python as JSON, YAML, etc.
+* [dictshield](https://github.com/exfm/dictshield) - A fast way to validate and trim the values in a dictionary.
+* [colander](http://docs.pylonsproject.org/projects/colander/en/latest/index.html) - A system for validating and deserializing data obtained via XML, JSON, an HTML form post or any other equally simple data serialization.
+
 ## Anti-spam
 
 *Libraries for fighting spam.*