diff --git a/getmemberships.php b/getmemberships.php
index debe738..71b393f 100755
--- a/getmemberships.php
+++ b/getmemberships.php
@@ -9,11 +9,19 @@ $limit = 100;
 $offset = 0;
 
 list($projectsById, $projectsByDomain) = getProjectList($limit, $offset, $client);
+writeDomains($projectsByDomain);
 $userList = getUserList($limit, $offset, $client);
 $membershipMapping = getUserMemberships($userList, $client);
-//print_r($projectsById);
-//print_r($projectsByDomain);
-//print_r($membershipMapping);
+print_r($projectsById);
+print_r($membershipMapping);
+
+function writeDomains($projectsByDomain) {
+  $domainHandle = fopen('./data/domainmap.csv', 'w');
+  foreach ($projectsByDomain as $domain => $identifier) {
+    fwrite ($domainHandle, "$domain,$identifier\n");
+  }
+  fclose($domainHandle);
+}
 
 function getProjectList($limit, $offset, $client) {
   //  We'll set a more realistic total user count after the first loop.