I think the article has a great set of ideas but if you follow this advice blindly you might risk flailing around doing everything badly instead of doing one or

I think the article has a great set of ideas but if you follow this advice blindly you might risk flailing around doing everything badly instead of doing one or two things really well. As long as you cover your whole customer acquisition pipeline I think it's more useful to focus your efforts on a few of these channels and really push them. I'm basing this both on observation of successful startups of late, like the experience DropBox had with AdWords, and also on my own limited experience. In my last startup we would probably have been even better off if we had focused more on the things that worked and quickly discarded non-revenue generating activities. In our case AdWords paid handsomely for the time and money invested while PR gave absolutely abysmal results. However, I personally kept working on bad marketing efforts mostly based on the naive view about how things are supposed to be.