An omni-channel approach not only benefits consumers but also benefits business bottom line: Research suggests that customers spend more than double when purchasing through an omni-channel retailer as opposed to a single-channel retailer, and are often more loyal. This could be due to the ease of purchase and the wider availability of products.
If you do decide to go with a blog though, please, for all of our sakes, do not start a marketing blog. The Internet is littered with unhelpful marketing blogs by novice marketers. Starting one will be discouraging to you since it’ll be much harder to get traffic, and you’ll be writing about things you know nothing about, so please, don’t start a marketing blog.