I'm planning to start a blog for my ecommerce retail site. Yup, I haven's start such thing for my ecommerce site yet.

I plan to have blog to include newsletter (weekly I think), items updates, special order status, previews of upcoming sales, new release ..etc
I have some goals for this blog:-
- Keep current customers informed of new products.
- Provide timely updates so customers would not have the idea of our shop is quite
- I believe blogs will help in Search Engine ranking, so sort of like to utilize this too!
With these in mind, what would be the best strategy for me?
- Should I include it in "latest news" section?
- Or seperate folder in my site's directory for the blog?
- Or external link to a dedicated blog site and link back to our ecommerce site?
Any inputs?