Yahoo! will be “shutting down” AltaVista on (as of?) July 8. I’m surprised it’s lasted this long considering how worthless it’s been since Yahoo! took it over. They eliminated most of it’s usefulness/functionality, particularly the ability to use Boolean operators. Before Yahoo! acquired AltaVista, it was my favorite search engine, but Yahoo! ruined it.
You can read Danny Sullivan’s eulogy for AltaVista here.