I want to do a product price compare site. So a product is a node and product can have many different price at different store. I want to allow selected user's role able to submit new price or new store from time to time but I want them to submit data on the node page similar to submitting comments, NOT on node edit page.
I'm looking onto entityreference but i'm not sure where to start and what others module needed to accomplish my objective.
Thanks for helping.