The title seems to imply the content of the post is incorrect because of the Alexa numbers, but the Alexa numbers are not really relied upon as a strong premise

The title seems to imply the content of the post is incorrect because of the Alexa numbers, but the Alexa numbers are not really relied upon as a strong premise. (Actually, there isn't really a strong premise, he just sort of asserts his opinion) Anyway, that doesn't mean he's totally wrong either. Although I admit there is still space in the "long tail" for more new web apps, it will be difficult to keep making web apps once every site has to battle existing players. Google/Yahoo/Microsoft/Cisco won't prop up the industry with constant acquisitions of unprofitable companies forever.