Content is Money

There is saying that "Knowledge is wealth", well, in the web industry, it literally means the same thing. The more knowledge of info your website provides or has, the more valuable it is - The more content you blog has, the more it can make for you so If you really want to make money online, keep adding content.
There are a tonne of ways to make money with your website aside from Google adsense. In fact there are a couple of websites that make regular income without Google adsense but let me just mention one:
Wikipedia: Perhaps it is because people have loved and become used to the wikipedia brand that they are ever so eager to contribute to its growth and sustenance. I recall a time that Wikipedia which is a free website that's full of knowledge actually made money just from pubic donations after weeks of appeal from the founder. Wikipedia created a system that allowed people to donate to the company and it netted more than $6 million!

So I think, the more content you have, the more effect you would be able to have on visitors who are the real assets and this can help you make money with your website.
Content is indeed king and you should make the best of it.