Guys - Philip and others have gone on record about the complications of providing more groups than 25. There is an absolute desprite cry thou for more group availability up into the 64 or 128 group range. I know for myself being the Owner of Rockcliffe I've had to turn down numerous requests for group that I really need to be informed on what they are doing. I've had to make trade offs between information and land rights but often times I'm still finding that even with an Alt I'm still coming up short.
My understanding is that the key issue is not the groups themselves but rather the communications (group notices and IMs) that fly between only the members of that group.
Is there not a way that, similar to the friends list, you can put in a couple of flags on the group listing so that we can only have 24-25 groups active at one time but yet subscribe to as many as we need to?
So for example, I'm at 25 groups and ISTE needs to give me land rights but I don't have an open slot. Rather than having to dump out of a group I 'put on hold' say Rockcliffe Business Forums and then activate the ISTE group which opens up all the IM and group notices for the period of time I have it active. Once I'm done - or if I need to start getting group notices again from Rockcliffe Business Forums, I simple put the ISTE group on hold and activate the RBF group or any other group with the available slot.
The idea behind this is that I still get the land / permission benefits of being involved with multiple groups (including the ability to see past notices) but don't put lag on the system unnecessarily by having the group engine having to engage me in group IMS and/or notices. You could probably even reduce the number of active groups down to 24, 20, or 16 and hence reduce load further.
While there are undoubtedly going to be some people saying that all 25 of their groups have active IM's flying about and they need more, this would at least be a starting point to providing the community some compromise on the ability to participate in more groups (say up to 128 - nice round binary figure) while not increasing the load on the Group IM engine.