What I look at is producing a balanced website that if needed gives a corporate feel.
A blog or weblog is literally that a diary maybe a better term for you would be Journal
I personally know nothing about the courier industry, I just look at a site and give my own opinion, based on would I use your services, have you tempted me to use your services, does your site look professional enough for me to confidently hand over money.
I then offer my own opinion
Time will only tell if the venture works, I hope it does.
When it comes to
SEO, this is another matter, I understand enough to be trusted to work on some very large nationwide corporate sites.