Yahoo Query Language and OAuth

I was looking at this article:

I have to search for users across multiple social networks. I was wondering if I could get the same result by searching through the yahoo yql community tables for twitter and also the other social networks, specifically

Does anyone know if the yahoo community tables require oauth like the twitter example above? Will I just have one oauth connection to yahoo, or would I have to connect to the other social networks in the community tables with oauth as well?