Improving Amazon Recommendations

I’ve noticed recently, after a spate of buying books from, that their customized “Recommendations” page for me is getting better and better. Which got me thinking: to help recommend, they can use their knowledge of what books I’ve bought from them, and what books I search for, but what about books I already own that I didn’t buy from them? It turns out that you can “Rate Items You Own” on your “Recommendations” page and do exactly this.

By the way, if you have a secret burning desire to shower me with gifts, you can now use my Wish List as a guide. Yes, this is a shameless ploy. I’ve got the flu; humour me.