But let's stay on this blog/search engine analogy for a while before we unpack what it means on a *technical* level, which is interesting. Let's analyze for the moment from a power dynamics level.
Building a web search engine is actually pretty easy these days, you can do so with off-the-shelf tools. And yet there are only a couple of search engines *really*, Google and Bing (DDG mostly uses Bing). And yet the information is right there. *Anyone* could run their own engine. Why don't they?
Furthermore there is an interesting connection between blogs and social media: the death of blogs + feed aggregation directly aligns with the death of social media.
How many of you were around for the birth and awkward death of blog engine feeds? Because I was! Oh, remember Google Reader?