If you are trying to make money online, then monetizing your blog is inevitable.
The question is when starting a blog when does the money making process begin? When is the proper time for a blogger to start to make money from blogging? There are two lines of thought or should I say approaches, as when to monetize your blog.
There are those who believe you should wait until you have a large audience or readership before trying to make any money.
Then there are those who believe in monetizing your blog from the start.
Let's take a look at both approaches and see what approach will best work for you and your blog.
The Monetize Later Approach:

• The primary concern of starting a blog is to provide valuable content and to drive traffic to your blog.
  Bloggers who take this approach feel that they can build a larger audience by not including ads or attempt to make money blogging from the very start.
  Building traffic by providing valuable content is the key.
  With this approach the reader's focus is entirely on the content rather than the ads, resulting in building an audience faster.
  
• Those who use the monetize later approach feel that new blogs are unlikely to make any significant amount of money on ads and affiliate programs without having an established reader base.
  In other words, if you aren't going to make any money, whatever ads you may have will not be beneficial to your blog and may just result in losing your audience.
  
• Blog readers want to read your blog, they don't want to click on advertisements.
  So to make money blogging, focus on building content, writing good posts, build trust with your readers then start to filter in your process to generate income with your blog.
  

The Monetize Now Approach:

• There are bloggers who choose to monetize their blog from the very start.
  They want to make money from blogging from the very beginning.
  They feel that readers expect to see some ads when they visit any blog.
  One of the benefits to monetize your blog at the very beginning is that it will give you more time to learn your market.
  
• By placing ads early you can learn what your readers are responding to: what types of ads are working well and where is the best placement for your ads.
  It makes the design of your blog easier.
  In other words, you won't have to redesign your blog when you start monetizing later.
  As you start to see how your blog is performing, the process of adding more ads will be easier.
  
• Keep ads to a minimum.
  A good tip when starting a blog is to avoid the use of pop-up or pop-down and flashing ads on your blog.
  These ads are very annoying and may lead to your visitor quickly leaving your blog site.
  
• You may be able to make some money earlier.
  It might not be a lot, but it can cover some of your operating costs.
  Making a little money may encourage you to bigger and better things.
  

As you can see there are benefits to both approaches.
Bottom line to make money blogging is that you must continually provide good valuable content to your readers.
You as a blogger need to start to drive traffic to your blog to increase your readership.
The more traffic you have, the more readers you have, and the more customers you will have.