Darn. (Thank you for answering.) That feature on another site is exactly why I wanted to create mine.
May I ask if you know if the multinetwork plugin would work in not sharing members?
The thing is, let’s say Joe opens up Joe’s Computer Parts online shop. He goes through all this marketing to get people on his site and Mike opens an account on his shop. When Mike visits My Sites, he’ll see Darlene’s Computer Pieces shop. He’ll visit that shop out of curiosity, see she offers a gift with an order, and buy from her instead of from Joe who was the one who basically got him there.