diff --git a/src/Microsoft.PowerShell.Commands.Management/Microsoft.PowerShell.Commands.Management.csproj b/src/Microsoft.PowerShell.Commands.Management/Microsoft.PowerShell.Commands.Management.csproj
index e9d84f4418..a95f1deb2e 100644
--- a/src/Microsoft.PowerShell.Commands.Management/Microsoft.PowerShell.Commands.Management.csproj
+++ b/src/Microsoft.PowerShell.Commands.Management/Microsoft.PowerShell.Commands.Management.csproj
@@ -68,6 +68,7 @@
   </PropertyGroup>
 
   <ItemGroup>
+    <!-- the following package(s) are from https://github.com/dotnet/corefx -->
     <PackageReference Include="System.ServiceProcess.ServiceController" Version="4.4.1" />
   </ItemGroup>
 
diff --git a/src/Microsoft.PowerShell.ConsoleHost/Microsoft.PowerShell.ConsoleHost.csproj b/src/Microsoft.PowerShell.ConsoleHost/Microsoft.PowerShell.ConsoleHost.csproj
index a7ec8d9ba3..fd34514c31 100644
--- a/src/Microsoft.PowerShell.ConsoleHost/Microsoft.PowerShell.ConsoleHost.csproj
+++ b/src/Microsoft.PowerShell.ConsoleHost/Microsoft.PowerShell.ConsoleHost.csproj
@@ -8,6 +8,7 @@
 
   <ItemGroup>
     <ProjectReference Include="..\System.Management.Automation\System.Management.Automation.csproj" />
+    <!-- the following package(s) are from https://github.com/microsoft/applicationinsights-??? -->
     <PackageReference Include="Microsoft.ApplicationInsights" Version="2.4.0" />
   </ItemGroup>
 
diff --git a/src/Microsoft.PowerShell.CoreCLR.Eventing/Microsoft.PowerShell.CoreCLR.Eventing.csproj b/src/Microsoft.PowerShell.CoreCLR.Eventing/Microsoft.PowerShell.CoreCLR.Eventing.csproj
index 9d57e79f8d..3c9921115e 100644
--- a/src/Microsoft.PowerShell.CoreCLR.Eventing/Microsoft.PowerShell.CoreCLR.Eventing.csproj
+++ b/src/Microsoft.PowerShell.CoreCLR.Eventing/Microsoft.PowerShell.CoreCLR.Eventing.csproj
@@ -23,6 +23,7 @@
   </PropertyGroup>
 
   <ItemGroup>
+    <!-- the following package(s) are from https://github.com/dotnet/corefx -->
     <PackageReference Include="System.Security.Principal.Windows" Version="4.4.1" />
   </ItemGroup>
 
diff --git a/src/Microsoft.PowerShell.SDK/Microsoft.PowerShell.SDK.csproj b/src/Microsoft.PowerShell.SDK/Microsoft.PowerShell.SDK.csproj
index 83af547524..267db6412c 100644
--- a/src/Microsoft.PowerShell.SDK/Microsoft.PowerShell.SDK.csproj
+++ b/src/Microsoft.PowerShell.SDK/Microsoft.PowerShell.SDK.csproj
@@ -15,17 +15,21 @@
   </ItemGroup>
 
   <ItemGroup>
+    <!-- the following package(s) are from https://github.com/dotnet/fxdac -->
     <PackageReference Include="System.Data.SqlClient" Version="4.4.2" />
+    <!-- the following package(s) are from https://github.com/dotnet/corefx -->
     <PackageReference Include="System.IO.Packaging" Version="4.4.1" />
     <PackageReference Include="System.Net.Http.WinHttpHandler" Version="4.4.0" />
+    <PackageReference Include="System.Text.Encodings.Web" Version="4.4.0" />
+    <PackageReference Include="System.Threading.AccessControl" Version="4.4.0" />
+    <!-- the following package(s) are from https://github.com/dotnet/wfc -->
     <PackageReference Include="System.ServiceModel.Duplex" Version="4.4.1" />
     <PackageReference Include="System.ServiceModel.Http" Version="4.4.1" />
     <PackageReference Include="System.ServiceModel.NetTcp" Version="4.4.1" />
     <PackageReference Include="System.ServiceModel.Primitives" Version="4.4.1" />
     <PackageReference Include="System.ServiceModel.Security" Version="4.4.1" />
-    <PackageReference Include="System.Text.Encodings.Web" Version="4.4.0" />
-    <PackageReference Include="System.Threading.AccessControl" Version="4.4.0" />
     <PackageReference Include="System.Private.ServiceModel" Version="4.4.1" />
+    <!-- the source could not be found for the following package(s) -->
     <PackageReference Include="Microsoft.NETCore.Windows.ApiSets" Version="1.0.1" />
   </ItemGroup>
 
diff --git a/src/Microsoft.WSMan.Management/Microsoft.WSMan.Management.csproj b/src/Microsoft.WSMan.Management/Microsoft.WSMan.Management.csproj
index 0bcb669ff9..dc066a3ca1 100644
--- a/src/Microsoft.WSMan.Management/Microsoft.WSMan.Management.csproj
+++ b/src/Microsoft.WSMan.Management/Microsoft.WSMan.Management.csproj
@@ -8,6 +8,7 @@
   <ItemGroup>
     <ProjectReference Include="..\System.Management.Automation\System.Management.Automation.csproj" />
     <ProjectReference Include="..\Microsoft.WSMan.Runtime\Microsoft.WSMan.Runtime.csproj" />
+    <!-- the following package(s) are from https://github.com/dotnet/corefx -->
     <PackageReference Include="System.ServiceProcess.ServiceController" Version="4.4.1" />    
   </ItemGroup>
 
diff --git a/src/System.Management.Automation/System.Management.Automation.csproj b/src/System.Management.Automation/System.Management.Automation.csproj
index aa6ffbb978..6b23a7f377 100644
--- a/src/System.Management.Automation/System.Management.Automation.csproj
+++ b/src/System.Management.Automation/System.Management.Automation.csproj
@@ -8,13 +8,16 @@
 
   <ItemGroup>
     <ProjectReference Include="..\Microsoft.PowerShell.CoreCLR.Eventing\Microsoft.PowerShell.CoreCLR.Eventing.csproj" />
-    <PackageReference Include="Microsoft.Win32.Registry.AccessControl" Version="4.4.0" />
+    <!-- the following package(s) are from https://github.com/JamesNK/Newtonsoft.Json -->
     <PackageReference Include="Newtonsoft.Json" Version="10.0.3" />
+    <!-- the following package(s) are from https://github.com/dotnet/corefx -->
+    <PackageReference Include="Microsoft.Win32.Registry.AccessControl" Version="4.4.0" />
     <PackageReference Include="System.IO.FileSystem.AccessControl" Version="4.4.0" />
     <PackageReference Include="System.Security.AccessControl" Version="4.4.1" />
     <PackageReference Include="System.Security.Cryptography.Pkcs" Version="4.4.0" />
     <PackageReference Include="System.Security.Permissions" Version="4.4.1" />
     <PackageReference Include="System.Text.Encoding.CodePages" Version="4.4.0" />
+    <!-- the following package(s) are from the powershell org -->
     <PackageReference Include="Microsoft.Management.Infrastructure" Version="1.0.0-alpha*" />
     <PackageReference Include="PowerShell.Core.Instrumentation" Version="6.0.0-beta*" />
   </ItemGroup>