According to Dharmesh, Inbound.org is a custom app built on the LAMP stack. http://inbound.org/discussion/view/we-build-grow-and-manage-inbound-org-ask-us-anyth

According to Dharmesh, Inbound.org is a custom app built on the LAMP stack. http://inbound.org/discussion/view/we-build-grow-and-manage-inbound-org-ask-us-anything#comment-177451 http://inbound.org/discussion/view/we-build-grow-and-manage-... Not sure about outbounding.org though.