Yahoo could completely shutdown and I wouldn't notice until someone told me. Even Flickr.

Flickr, and I still have a group of friends that I communicate with via a private yahoo group.

I still have a Yahoo email address that I use whenever I don't want to give away my real email address.

Me too. Gmail is for people I trust, yahoo is for when I want the email but don't want the sender to have my "real" address (e.g. hotel/travel confirmations), and hotmail is for when I don't even want the email.

I haven't used a Yahoo service since the 90's.

I know this doesn't add anything in particular, but I'd like to reinforce your point.

Ditto.

They are still best for apps that rely on high content value, thus I still use them for Finance and Fantasy Sports.

I use Yahoo mail for signing up to things. I check it once or twice a year. I have a flickr account but wouldn't notice if it disappeared. I use Yahoo site explorer for SEO tracking though, and that's useful. I also use Delicious more or less daily.

It's the one I was using on a daily basis. Apart from that I occasionally I also use Flickr and BOSS named entity recognition service.

I had stopped using del.icio.us a year or two ago. That may have been the only Yahoo! service I had ever used.

Fantasy Football, that's about it.

Flickr

I'm still angry that yahoo bought them. Since then they've let flickr stagnate while the rest of the landscape innovated around them (almost making them obsolete) and they've added the encumbrance of being forced to login with a yahoo account.

I tried to sign up for Flikr and noticed Yahoo had bought them. Refusing to sign up for a Yahoo account, I now use Picasa for photo storage and sharing.

Yahoo email that gets checked about once a month, Flickr but sure I could move to picassa its only because of the convenience of iPhoto + flickr

Delicious is the only service I used at least every other day

Delicious and Flickr.

I still check my yahoo email from time to time, just in case. Yahoo mail could totally shut down and I wouldn't even care.

It's the only Yahoo service I've used in years, and I use it every day. <sigh>

I use the geocoder. It's terms seemed less restrictive than Google's.

I totally forgot flickr, its the site I most visit.