Incidentally, I do have a flickr account, but I don't often use it. There's no advantage to it... unless they do end up offering book and print making services.
For me, there needs to be a consolidation of all of these web services. Flickr, Delicious, etc. ... there's too many "things" out there. I guess that's why I don't often use my account. I consider my blog to be the consolidating factor, not these other services.