On the Internet nobody knows you have a tumblelog.
There are, I will admit, some types of content that are (or might be) commodities in this sense - basic factual news reporting, perhaps, or the rules of arithemetic. But there are huge areas of content where the content is absolutely not a commodity, where quality matters and where customers differentiate very clearly between different sources. And this means that customers will pay very different amounts for these different types of content. In other words, content from one source is not the same as content from another - and hence is not a commodity in the stock-market sense. Content is not a commodity | FutureBook