Here's a little background.
I'm coding a product comparison and shopping script in PHP that interfaces with an external API. Part of the information that the API returns is a list of products for sale. (The product's title, md5 id, description, price, merchant, and brand are listed and returned as a PHP array for further server-side processing.) Each individual product for sale has its own md5 hash. Let me also add that it is possible to fire off a query to the API with the md5 hash as a parameter in order to grab the specific product matching the hash.
I'm thinking of how I'm going to bridge the md5 hash for each individual product with a xF forum topic revolving around the product in question. In this manner, when someone searches for a specific item through the API search engine, relevant customer reviews are pulled from xF's database. In other words, the product's unique md5 hash relates to and pulls information from xF's database.
I'm not asking for anyone to do this work for me, but I would appreciate being pointed in the right direction.