I appreciate Yahoo precisely bacause they ask very little private information of me, promise not to SPAM me, or sell the information that they have gotten from me, and give me only the stuff that I have indicated I am interested in, while making it easy for me to make changes as I see fit in a format that is somewhat familiar and exceedingly customizable. If we don't want to give out information these other concepts simply can not succeed. If we lived in an ideal world where people did not go to such extremes just to get an e-mail address, it might be possible that people might be willing to give up even more valuable information about themselves. Just to go through the stuff I ask for on a daily basis from NetScape's NetCenter takes better than an hour a night, and that is mostly skimming the information that comes invited to my mail-box. I can't imagine what it would be like with people 'pushing' additional unsolicited information at me.
Many Web users do have other interests than surfing the web and reading their e-mail.
I am not wild about having to give you the requested info to get this 'TALK-BACK' posted.