SJTAG.org provides a variety of online tools to aid collaboration outside of conference calls and to provide a capability for non-members to participate:
We run online discussion forums at http://forums.sjtag.org - registration is open to non-members and new accounts are activated immediately, so you can contribute right away.
For collaborative writing and publication we have our wiki at http://wiki.sjtag.org/. Please note that there is no registration for the wiki - instead all users of the forums are automatically assigned access to the wiki using the same login credentials.
Many of our documents and supporting files are made available for download through our File Manager. Only members can upload and manage files stored in the file manager, but non-members can browse the files on our Stored Documents page. Members access is at http://files.sjtag.org/.