Has the social-networking phenomenon gotten so hot that it’s about to burn out? You’ve got to wonder. There are niche sites for everybody — and I do mean everybody.

Case in point: Burnt Marshmallows, which bills itself as “Canada’s fastest-growing social network dedicated to everything camping.” That’s undoubtedly true. The site, part of the Ning network of microsites, appears to have been created just a few days ago and has grown from one member to more than 100 as of this writing. That’s exponential growth, as any mathematician would tell you. Among the highlights of “B.M.,” as I like to call it: a video showing you how NOT to light a bonfire (hint — don’t use gasoline).
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