Has Google Met Its Match In Yandex?

A recent post on BusinessWeek.com clued me into a new search engine on the Eastern side of the world called Yandex .

According to Business Week,
Few outside of Russia have heard of the Yandex search engine, but that may soon change. Yandex has 44% of the Russian market—10 points ahead of Google—and is now the No. 2 search outfit in Europe, according to researcher comScore.

I am interested to see if Yandex can hold its own to the search giant. Google is pushing deep into the Russian market and has forecast ad revenues to jump from $200 million to $1 billion in the Russian market by 2010.

I would love to give a run down of the Yandex search engine but unfortunately I am not that familiar with Russian. But from what I have read Yandex is making headways to combat Google.

Can Yandex keep the motherland or will Google create a heavy enough force to drive Yandex down?