I received bad news yesterday. Jiglu is closing. We've used this service for our online groups for a few years, and we've been very happy with it. We now have the problem of finding a replacement service and moving the groups to the new service. But time is not on our side - Jiglu closes at the end of April.
We are looking at a number of possible replacements, including our own internal service (based on Lotus Notes). Let us know (via the comment facility) if you have any suggestions.
I'll post more information about this once we have selected a new service provider.