But, I don't really have any "expert" niche I can write about. Consistently.
I disagree.
You could keep a running [link|http://rhetoric.gregfolkert.net/|blog] of your experiences keeping a Debian machine up to date. It would be a nice go-to place for those who are afraid to live on the bleeding edge, but who need something new.
You participate at a
lot places that many of us don't frequent. Having your Debian wisdom in one place would be a great service. It could lead to remote consulting gigs, and I'll bet you could earn some decent $$ from ads on it, too.
You know, sort of like that other guy's [link|http://linuxmafia.com/~rick/|stuff], but more up to date and more Debian-specific.
Just a thought. :-)
Cheers,
Scott.