Lyell E. Petersen @93octane

Tumblr and Posterous are the two most prominent “tumblogging” sites, i.e. sites that make blogging more straightforward by making it easier to post media. Both were launched within six months. (Actually, Posterous was started later than Tumblr.)

But now Tumblr has been an Alexa Top 100 site for a while and is still growing strong. Meanwhile Posterous has about 4 times less uniques. Yet Posterous has everything to win: it’s a Y Combinator company with top-tier investors like Chris Sacca and Mitch Kapor. Its founders are experienced software engineers with computer science degrees from Stanford. How come it’s eating dust from a small startup started by a high school dropout?

The answer is as easy as it is counter-intuitive: Tumblr is a New York company and Posterous is a Silicon Valley company (full article…).

I asked Posterous co-founder Sachin Agarwal how Posterous will actually make money. His answer was simple. Charge for business and commercial use of Posterous…One of Posterous’ first “clients” is Coca-Cola, which is definitely a good first start. Coca-Cola is using Posterous for its NCAA “Dept of Fannovation” where people can come up with ideas to improve the experience of being a fan, and a chance to win $10,000. (full article…)