2013 Release: User Guide of GMap Editor V2
Discuss everything about gMap Builder and interactive maps in our support forum.

A crowd mapping sample - Custom Google Map
Click Crowdsourced button

Edit Settings for Crowdsource Map and Marker List
Set user permission, enable / disable login from Facebook, Twitter, Google+ or email.

Crowdsourced Map Markers can be removed using Admin Panel

Change your own wordings for the Input Panel
If you enable the option, allowing viewers to add location,
they can place markers with the steps below:

Login to share location using Facebook, Twitter or Google Plus account

Enter address or Pinpoint Location on map, insert text description

Drag the marker to confirm location on the map
More: Creating Data Cluster Map