maven - Difference between repository and pluginrepository

Question

My Android Maven project pom.xml contains the following entries. Now everything works fine. What is the difference between <repositories> entries and the <pluginRepositories> entries.

<repositories>
        <repository>
            <id>my-repo</id>
            <url>http://10.10.10.230:8081/nexus/content/groups/public</url>
            <releases>
                <enabled>true</enabled>
            </releases>
            <snapshots>
                <enabled>true</enabled>
                <updatePolicy>always</updatePolicy>
            </snapshots>
        </repository>
    </repositories>
    <pluginRepositories>
        <pluginRepository>
            <id>my-repo</id>
            <name>my-repo</name>
            <url>http://10.10.10.230:8081/nexus/content/groups/public/</url>
            <releases>
                <enabled>true</enabled>
            </releases>
            <snapshots>
                <enabled>true</enabled>
            </snapshots>
        </pluginRepository>
    </pluginRepositories>

Answer 1

As @otakun85 stated, There is no technical difference at all. It's for having different configurations->behavior for plugins in contrary to normal artifacts. See repository vs. pluginRepository for more details.

Also check maven-users mailing list archives, It provides quite good explanation to it.