I definitely want to foster an ecosystem around mojoPortal. At a minimum I am willing to link to other sites that sell products or value added consulting on top of mojoPortal. We already have a list started on the Consulting page, and I could/would create a Market Place page in the Community section of the site to list and link to mojoPortal related products for sale on other sites.
As far as selling right here on this site in the mojoPortal store, it becomes more of a partner situation and for the moment I'm taking this on a case by case basis but am definitely interested in discussing partnership opportunities. There are a number of issues to consider and work out including logistical issues like who's ecommerce account the payments flow through, how to make it transparent to both parties when sales occur, how to fairly share the revenue, who will handle the support, how much support will actually be needed, who will produce documentation and/or training materials, etc, etc. All these issues have to be worked out in a way that makes all parties feel its a win win situation.
You and I have discussed some of this before and maybe we should discuss it further (we can schedule another call today or tomorrow sometime if you'd like). I'm open to any of the possibilities. I could link to your site and you could sell it there or we can figure out a partnership arrangement to sell it here.