We often talk about Wow!-feeling. Somehow I think that for a professional, experiencing a Wow ! is more that just a Wow. -Maybe one starts to be so cynical..
Anyway, Flickr probably gives you one of those Wows. There has been a need to use your hundreds digipics somehow - not just collecting those. Flickr is a nice way to publish your pics and much more.
Retrievr, just sketch the pic, and Flickr will find it to you! =D
More @ fd's flickr toys and Flickr Services
Even Picasa should be jeallous, although they are in a different branch. (Now when Google came up: Did you know that they put 'Office' into web :D)