Bottle conditioned microbrews with same yeast?

I've been curious about this for a while. Every time I drink a bottle-conditioned microbrew, I wonder if the yeast in there is the same yeast used for fermentation, or a secondary yeast (such as the champaign yeasts Vinnie uses for a lot of Russian River brews). Has anyone ever bothered to make a list or some easy way to check if certain brews have viable yeasts to use? I have a friend that has placed gold in quite a few comps by making his recipes stand out with not-so-common yeasts he's found from various micro-brews over the years.

Just a thought.

Bells is one for sure. I'm pretty sure Rogue is too.

http://www.nada.kth.se/~alun/Beer/Bottle-Yeasts/
This is the best list I've seen. I hope there is a better one.

Conroe, good list, wish it was newer. Thanks.