If you would like to be added to the list of participants (and get email invitations and updates about related activities), get yourself a Confluence wiki user id. Then send rviger@usgs.gov an email using the "Share" button on the page for the group you want to be included within. For instance, if you send from the ETWG Integration Focus Group page, you will be added to the general CDI users group, the Earth-Science Themes Working Group, and the ETWG Soils Focus Group. If you want to be a member of more than one Focus Group, then go to the corresponding page within that Focus group and repeat this procedure.