Quota Control for Sites and Organizations Portlet is one of the plugins developed by the Liferay Spain User Group. You can check out our Group Page at https://www.liferay.com/community/user-groups/spain/welcome. All stuff related to this project will be at that wiki page: https://www.liferay.com/community/user-groups/spain/welcome/-/wiki/Main/%23LSUG+Project+%231+-+Quota+Control+App+
You can find the forum thread for this plugin at: http://www.liferay.com/es/community/forums/-/message_boards/message/17851111 and its JIRA "User Story" at http://issues.liferay.com/browse/LPS-14058.
Liferay Portal is an open source enterprise web platform for building business solutions that deliver immediate results and long-term value. To get started, check out the project's community homepage at http://liferay.org!