How many niches you promote

[Max]

How many dif. niches do you sell on your freesites. Or how many sponsors do you promote on your free sites?
Should I concentrate on one niche/sponsor?

[Greenguy]

When I build, I promote 1 paysite only.

[Cleo]

One niche per site. One site per page.

[DangerDave]

As said..........

DD

[Max]

ok
that's clear
But I mean in the long term. You take one or two narrow niches and make free sites only in this niches. After some period your sites will be dominating in certain LL category and you will be getting more targeted traffic. But If you get scattered in many directions/niches you will get just a bit from the hole part of directed traf.
Am I right?

[Greenguy]

I pretty much promote a little of everything & try not to make 2 of the same niches in the same week.