yeah J_RaD, altavista was the first for most of us. 1995. According to Altavista lore, Yahoo never really wanted A-V, it was part of the deal when they purchased Overture, who had bought AltaVista earlier that year.
Aside from nostalgia, the AltaVista brand has no value. Searches from altavista.com go directly to search.yahoo.com, and the only thing that makes it branded as AltaVista is a variable in the querystring. And Yahoo Search is just Bing with a different interface.
Delicious on the other hand has all that clouded user data that really ought to find a new home.