Here is a list of everything they offer: http://everything.yahoo.com/
Delicious was about the only thing that the 'tech' crowd uses. Think about the people you know who might use Yahoo! Mail or Answers. It is the decidedly less-tech people who use these products, mainly as a throwback to the Yahoo! of 2000. Of course, Yahoo!'s goal isn't to cater to tech people, but people who click on ads. I imagine their revenue is declining for even those main-stream products, but for them to cut out the more tech oriented services which actually have a chance in the future to really get 'big', is just delaying their demise a year or 2.
That's not quite true. They have a pretty good fantasy hockey pool.