There's "All Consuming": http://www.allconsuming.net . Here is an example of one user's "consumption" (not me!): http://www.allconsuming.net/person/sipes23/

The service is somewhat primitive, but has two features I like. You can download your consumption content (but not your actual commentary). And you can add your "recently consumed" list to a website with a little javascript.

The site is a spin-off from Amazon. They use a lot of Amazon content. You can also add stuff which is not on Amazon, for example here's the "grapes" page: http://www.allconsuming.net/item/view/93636