Free blogs can be used for different purposes- to earn money, to fulfill the quest of offer knowledge to people and just as a hobby too. Whenever you make a free blog and update it with information on any product and companies find that you receive good amount of traffic to your blog they will approach you with offers for advertisements. They will be ready to pay your for advertising their products or website links on your blog page. Then you will also get free blogs article writing offers. That is if you write articles or reviews on a particular product and write it in a constructive way that the visitor gets convinced to buy it, you will be paid for the reviews. And additional commission of the visitor really buys the product.
Except photo album there is no limit to storage and bandwidth with blogs so you can go on adding as much staff as you link to your free blogs. Now there are certain things which you must take care while you go for free blogging. If you really want to make your blogs constructive and productive then you must follow certain steps to make it really happen like that.
First write a blog on a topic which you are really interested in otherwise after some days you will give the habit and your blog will be of no use.
Second if you have decided to write choose a topic which is very popular on the Internet and which is highly searched for.
Third to make your free blogs productive and get good search engine optimization you must use good keywords. You key words are a great secret to your blog's success.