First of all, you have to choose a good topic for your blog. You should select a topic which is widely searched by the users on the internet. In this way, you will be able to attract huge number of people towards your blog. You can also choose a topic for a niche, but make sure that you can find enough material for that topic online to write your own articles to publish on your blog.
You have to publish content on regular basis on your blog to build up a good ranking. In addition, you have to keep in mind that the quality of your content is equally important to attract visitors.
After creating a successful blog, you can start off with advertisement of your product. You can start with a teaser which you can display on your blog for some days to arise the curiosity of your audience.
You have to engage your audience in your product launch so as to get maximum hits for it. You can also take suggestions about the features of the product from your visitors to make the necessary improvements in its layout before launching it.
Find the right strategy for your product launch. You have to develop a good marketing mix. In marketing mix you will first plan about your product and its features. Then, you have to decide about its price which is often the most important part of the strategy. You have to keep you prices affordable for the customers and at the same time you have to make sure that you are going to earn good profit from selling it. After that, you will have to develop a promotional strategy (you can use your blog to promote your product). In the end, you have to decide about the placement of your product (from where your customer can buy your product? What is you distribution network?).