With regard to open access publication of conference proceedings, I draw your attention to Proceedings of Science http://pos.sissa.it/POSwhat.html . From their webpage:
"The aim of PoS is to offer a versatile, fast, inexpensive and open tool devised and run by the scientific community for the scientific community. The service will hence be open to all readers free of charge and the fees for publication will be kept low on a not-for-profit basis.
Given the Open Access nature of this proceedings collection, PoS has chosen to apply the Creative Commons License (Attribution-NonCommercial-ShareAlike). Every author submitting his/her contribution to PoS retains the copyright, and upon submission (s)he applies this license to his/her work."