Zotero is a free Firefox extension to collect, manage, cite, and share the research sources, which is also available in the clouds, making our list of references available anywhere. Zotero provides word processor plugins for Ms.Word and OOo Writer (and NeoOffice - A free software port of OpenOffice.org to the MacOS X platform). At the moment, it seems OOo is unable to provide the support for the plugin due to the unavailability of the original developer .
Zotero does not have the Abiword support yet. There are requests for the feature on both Abiword's bugzilla and Zotero's Feature Request. I'd like to see someone from Zotero developers' team considering this request to make this possible. As Zotero and Firefox are portable and are capable of working from a thumb drive, it would be better to have a plugin for Abiword as this would make Zotero package a really portable on with all the three being portable, considering the availability of the Abiword portable application.