E-commerce bloggers must carefully write keeping their audience in mind. Everything you post on your blog will speak for your product or service. Your interaction with bloggers in comments and otherwise will give you a direction.
Respond with personalised comments rather than a generic Thank You. Fostering a conversation helps build the credibility of your blog!
Grow your Blog Organically. Don't force/ask anyone to share, follow or comment on blog. Just focus on promotion.