"So my question to everyone is: can you tell if a photo is shot with digital and converted to B&W ..and is so...how?..."

Easy. You can't, unless ..

...it was converted poorly. The things that give away b&w digital conversions are the same things that give away digital images in general: artifacts, tonal banding, digital noise, and of course, poor use of filters, masking, or resizing.

"but excuse me....EVERY PHOTO ON THIS WEBSITE IS DIGITAL. It may have been shot on film but make no mistakes it was turned into a digital image..."

Ah, that's the thing. We have to establish our terms. When I use the term "film image", I mean a wet-process (traditional darkroom) print that was made from a film negative or transparency.

In my eyes, a film original that is "digitized" by scanning, then edited on a computer and used as either a print or web file has indeed become a DIGITAL image.

Of course I realize not everyone will share this view, and that's cool. To me it really doesn't matter much, and trust me, I don't spend (no make that waste) time talking about it at length.

Bottom line is you can take a shot with a digital camera, convert it to b&w, print it out, and if it was done right no one can tell it wasn't film...