My photo of a grizzly bear was used in a publication

Grizzly bear from local mountain - Photo is actually a thumbnail of a video I had shot on my Flip Video camcorder.
July 14, 2009 11:33pm CST
I had uploaded some of these photos onto Flickr awhile back. An internet travel site requested to use one of the photos, but offered no recompense only attribution. I said sure. Now I'm wondering if there's a way to monetize photos? (I just found it funny that this particular picture was actually a thumbnail of a video that I shot.)
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