Just like ebay, someone can sign up a special user account, and put in his paypal (or other payment gateway) account info, and anything sells under his account will be directed to his paypal payment page for checkout. My site is a single WP site, NOT a WPMU (yet).
For example, he has an ebook for sale for $10. The visitors click "buy now", next page, the visitor will pay $10 to user's paypal payment page (the receipt will say the user paid $10 to the user), and later the user (ebook owner) gets $9 and I get $1.
In summary, there are two questions:
1. Can any WP shopping cart allow users to take payment on my site?
2. If yes, how can the money (says, total $10) be splitted into 2 portions, and $9 goes to the user and $1 goes to me later after visitor paid $10? Does paypal (or any gateway/shopping cart application) support that? If not, that is ok, the user can pay me back later - is there any way to do that - I mean: pay me back later? I can always manually send a bill to the user who owns me the fee, but it would be time consuming for collecting $1
Thank you for your time reading my long post Hope to get some solutions from the experts here.