I'm completely speculating here, but maybe the
reason we're doing so well so
far is that, I'd imagine, a significant portion of our readers are in the
tech sector (at least compared to most non-profits)
That may be so for writers, but probably not readers (at least, not to
a significant degree), though our tech readers may be more interested
in donating (since they appreciate the cause of free content rather
than just the convenient source of information).