We’ve already announced that Bing and Google have agreements in place with Twitter to provide real-time search results. Now, Yahoo! is toying with real-time search as well.

The thing that strikes me as interesting about the Yahoo! real-time search plan is that it does not include Twitter. It involves OneRiot, a company that has established a reputation as a real-time search engine.

If OneRiot continues to grow and entrench itself as a real real-time search engine that can produce great results on a consistent basis then this will be a feather in the Yahoo! cap. Otherwise, it will end up being like so many other Yahoo! pairings of the past. I wonder if the new era of Yahoo! will look better than its past.

So the battle for dominance in real-time search begins. Who do you think will end up top dog?