Comment on 6 Companies Google Should Buy Right NowparentComments−fallentimes17yBecause of StumbleUpon's very low costs ($.05 per unique visitor) for targeted traffic, their ads, which aren't even marked as such, can be a really good deal depending on what your site or product is.
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Because of StumbleUpon's very low costs ($.05 per unique visitor) for targeted traffic, their ads, which aren't even marked as such, can be a really good deal depending on what your site or product is.