"For its part, Microsoft immediately complained to regulators about the tie-up."

Pot meet kettle.

Have M$ complied with their court rulings in EU and US from 2004/5? They are still dragging their heels and were fined extra in February and appealed again if I remember correctly.

I use Yahoo! every day but never for search. They have a great Mail & News service & Flickr is very good but search, I gave up on Yahoo! search when Alta-Vista & the Dogpile turned up & they died ages ago.