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

Looks more like a Amazon affiliate than a real spin-off. But it seems like a nice site. Will have a look at it.

I just started using SpringPad (http://www.springpadit.com/) and it's awesome for this kind of thing.

I'd recommend going Old School, and just using a Moleskine and a pen.

The thing I don't like about this option is that it's not easily searchable, unless you don't have a lot of content.

A plain textfile might be an alternative that does that.

this is what getglue is supposed to do

That's it. Looks really usable, setup also was simple.

Shame that it's English only :(