Blender for Architecture I would like to know which are the benefits of using this program in relation with the architecture. I would like to know if it is a tool from the architects to know something about lights or something like that.

I'm Adrián from Spain, and I'm discovering Blender now because I'm doing a kind of tesis about this program.

Thanks :)
I think @atomicbezierslinger might be correct, but I think Blender can be great for architectural renderings, but not necessarily designing. There are plugins that add Architectural Desktop-like features, but Blender is more like Maya than AutoCAD.

Two good resources to see what's capable in architectural rendering in Blender are: Blendswap and Blender Artists (for example: this recent rendering posted by the artist)