I like this top 10 list: Top 10 dot-com flops – CNET.com because I don’t recall even hearing about some of them (boo.com, kibu.com). That makes me feel good that I didn’t waste any mental energy on them.
I have to admit that I did spend some money on one of them. I got one load of groceries from webvan just to see how it worked and if they could pick acceptable fruit (they did). But it wasn’t worth the extra cost so I had no desire to use them again. I guess I wasn’t alone in that response.