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 *Automation build.*
 
-- [Apache Ant](https://ant.apache.org/) - Automation build tool, similar to make, written in Java.
-- [Apache Maven](http://maven.apache.org/) - Build automation tool mainly for Java.
-- [Bazel](http://www.bazel.io/) - Google's build system.
-- [Bolt](https://puppet.com/products/bolt) - You can use Bolt to run one-off tasks, scripts to automate the provisioning and management of some nodes, you can use Bolt to move a step beyond scripts, and make them shareable.
-- [GNU Make](http://www.gnu.org/software/make/) - The most popular automation build tool for many purposes.
-- [Gradle](http://gradle.org/) - Another build automation system.
-- [Rake](https://github.com/ruby/rake) - Build automation tool similar to Make, written in and extensible in Ruby.
+- [Apache Ant](https://ant.apache.org/) - Automation build tool, similar to make, a library and command-line tool whose mission is to drive processes described in build files as targets and extension points dependent upon each other. ([Source Code](https://github.com/apache/ant)) `Apache-2.0` `Java`
+- [Apache Maven](http://maven.apache.org/) - Build automation tool mainly for Java. A software project management and comprehension tool. Based on the concept of a project object model (POM), Maven can manage a project's build, reporting and documentation from a central piece of information. ([Source Code](https://github.com/apache/maven)) `Apache-2.0` `Java`
+- [Bazel](http://www.bazel.io/) - A fast, scalable, multi-language and extensible build system. Used by Google. ([Source Code](https://github.com/bazelbuild/bazel/)) `Apache-2.0` `Java`
+- [Bolt](https://puppet.com/products/bolt) - You can use Bolt to run one-off tasks, scripts to automate the provisioning and management of some nodes, you can use Bolt to move a step beyond scripts, and make them shareable. ([Source Code](https://github.com/puppetlabs/bolt)) `Apache-2.0` `Ruby`
+- [GNU Make](http://www.gnu.org/software/make/) - The most popular automation build tool for many purposes, make is a tool which controls the generation of executables and other non-source files of a program from the program's source files. ([Source Code](https://git.savannah.gnu.org/cgit/make.git)) `GPL-3.0` `C`
+- [Gradle](http://gradle.org/) - Another build automation system. ([Source Code](https://github.com/gradle/gradle)) `Groovy/Java` `Apache-2.0`
+- [Rake](https://ruby.github.io/rake/) - Build automation tool similar to Make, written in and extensible in Ruby. ([Source Code](https://github.com/ruby/rake)) `MIT` `Ruby`
 
 
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