The answer is as easy as it is counter-intuitive: Tumblr is a New York company and Posterous is a Silicon Valley company.
Or, to put it another way: Posterous is an engineered product, while Tumblr is a designed product.
Snow melt is a great time to visualize the pollution caused by cars. When you see the filthy slush on the sides of the roads, do you ever stop to think, what is all that black stuff? Is it just dirt and sand? Well, the sidewalks don’t ever get so disgusting from the bottoms of shoes, not even close. Seems the filth must be a combination of engine oil and gasoline droplets combined with rubbings from tires maybe mixed portions of the asphalt that are continually breaking up. And what kinds of chemical additives and heavy metals are in all these pollutants?
It’s not abandoned yet, but the Western Hills Viaduct is crumbling beneath the thousands of cars it carries every day. The City of Cincinnati is planning to spend millions over the next five years, however, for a rehab and/or replacement plan. Sadly, the billions upon billions of dollars being spent on the I-75 Mill Creek Expressway Project and the Brent Spence Bridge Replacement/Rehab Plan don’t account for the Viaduct, and barely alter the interchange with I-75 at all.