Definitely not Lucida Grande (although I like that font and it comes close). I tried it out and too many letters were off.

I think it's much closer to one of those squarish fonts. Either way I found a few of them for free (Collator, Titillium, Maven Pro), bold them in every way I can, shrink it down to 90% height, and decrease kerning and they look pretty good.

I absolutely love these thick fonts for logotypes. Can anyone identify this one and, more importantly, does anyone know of some free alternatives?

Thanks! That looks really close if it's not. Any idea what a good, free substitute would be?