diff --git a/about.md b/about.md
index f614b3b..0222b18 100644
--- a/about.md
+++ b/about.md
@@ -11,7 +11,9 @@ If you already know what you’re doing and have a license you prefer to use
 
 ## Not comprehensive
 
-This site is not a comprehensive directory of open source licenses.  We think there are too many options, which adds to the confusion. On the homepage, we break it down into just three licenses. The vast majority of projects will likely be fine choosing from one of these three. Just in case you have specific needs not covered by those three, we also highlight a [few other licenses to consider](/licenses/).  Additional resources:
+This site is not a comprehensive directory of open source licenses.  We think there are too many options, which adds to the confusion. On the homepage, we break it down into just three licenses. The vast majority of projects will likely be fine choosing from one of these three. Just in case you have specific needs not covered by those three, we also highlight a [few other licenses to consider](/licenses/).
+
+### Additional resources
 
 * [Open Source Initiative](http://opensource.org/licenses/) - comprehensive list of open source licenses
 * [Comparison of free and open-source software licenses](http://en.wikipedia.org/wiki/Comparison_of_free_and_open-source_software_licenses) on Wikipedia
@@ -19,6 +21,13 @@ This site is not a comprehensive directory of open source licenses.  We think th
 * [TLDRLegal](http://www.tldrlegal.com/)
 {: .bullets}
 
+### Tools
+
+* [gem-licenses](https://github.com/dblock/gem-licenses)
+* [LicenseFinder](https://github.com/pivotal/LicenseFinder)
+* [License Maven Plugin](http://mojo.codehaus.org/license-maven-plugin/)
+{: .bullets}
+
 ## Help us improve it
 
 Choosealicense.com isn’t just about open source, the site itself is open source as well. See something you think could be done better? Feel free to [fork the project](https://github.com/github/choosealicense.com) on GitHub and submit a pull request. We'd welcome your improvements.