TheSoftwareFactory released a technology preview of the UmlCanvas addin for EA.
This addin allows you to publish your EA class diagrams in the UmlCanvas technology to http://hosted.umlcanvas.org
Diagrams published at http://hosted.umlcanvas.org can then be used (and edited) from any webpage, blog, and even Google Wave.
Download the addin at http://umlcanvas.org/About/Collaboration