I've been getting hit with a slew of Plaxo address update requests recently. Plaxo is a site that sends messages to people in your Microsoft Outlook address book and asks them to update their info which then, I surmise, flows back into your address book.
Good idea, but I don't think it will catch on because...
(1) With as much spam as I receive at work, additional e-mail that includes homework for me is not welcome.
(2) Every Plaxo request I get has to be filled out from scratch because all the people sending me these seem to have different pieces of information about me, and the only way to avoid that is to use Plaxo myself, and I'm too lazy to download and install anything.
And why is it that only people I haven't spoken to in 8 years and probably won't ever speak to again that send me these Plaxo requests? I'm certainly not expecting Xmas cards from them. And people who need to reach me can always get my snailmail address by e-mailing me. I like having that buffer there, and it's a light one because e-mail addresses are so easy to remember (everyone should strive for an easy-to-remember e-mail address that friends and family can derive easily but computers can't; is a good one if you can nab it).
Speaking of Xmas cards, with the advent of e-mail, it seems that Xmas cards have been dropped by all but those willing to put some time and effort into writing some informative messages or providing a photo along with a short recap of the year. I enjoy those. The number of Xmas cards I receive has decreased, but the quality has improved.