Yamahasupertenere dot com.
Not as extensive a history as here I don't think. Definitely far less going on than advrider, but model specific. Should be all the info you'll need on the Tenere, though.
I just had a quick look at the S-10 forum. Looks like a good resource. I guess there is no bike in this (or any other) category that is right for everyone! From KLR 650 to BMW R1200GS. Every bike seems to be loved by some and reviled by others!
I want to keep it to bikes with enough presence for a decent dealer network and parts availability. Ease of self-maintainability is important (as is reliability). In this area, KTM, Aprilla, Motoguzzi etc. do not make the short list. While a large proportion of BMW owners question why anyone could possibly consider anything else, the maintenance cost and vehicle reliability are more daunting than the initial (high) cost.
In my region, there is really not that much in the way of recent model used "Adventure" bikes for sale - at least not at a reasonable price. With the current state of the Canadian buck, buying south of the border is not likely, (unlike when I bought my lightly used FJR eight yeas ago). More are available in Quebec and Ontario so I might hit the Kijiji ads there.