Jupiter vs. eMarketer

My latest Online Spin went out this morning. No reactions on The Spin Board just yet...

I expect this one is going to ruffle some feathers, but I couldn't let the filing of the lawsuit pass without comment. For seven years, eMarketer has been aggregating statistics and publishing its own analysis and commentary on those statistics for the benefit of the online marketing community. I believe strongly that JupiterResearch has benefitted from eMarketer's publicizing its stats over the years. That's one of the reasons why Jupiter's lawsuit baffles me.