Here are some ideas that I think would be effective for building the 90 Minds brand which in turn helps individual members:
1.Annual MotM. No brainer already happening.
2.Vendor conference. Same as above but a chance for vendors to present new products, features and roadmaps to 90 Minds / OASIS members in a structured format. Sponsored by Vendors.
3.Virtual end user conference. This not only differentiates 90 Minds as a group and the individual participating members, it also allows us to present information in an exciting, fresh way to customers without any costs associated with travel and being away from the office.
4.90 Minds Magazine. Yes, an actual printed magazine. We could share the costs of physical publishing and allow contribution articles. Members could then buy some issues (for a low price) and distribute to clients and prospects. Members could slap their logo and info on it.
I realize that some of the firms in the group already do their own marketing. I feel that the above activities would be supplemental to most firms. Regardless, they would not be mandatory if people don't want to participate, they don't have to.
I have a few more ideas but these are the big ones.