Make sure that all your essential contact details are readily accessible. Potential customers often type a search into google to find a contact phone number or an address so provide plenty of options so that customers or readers can get in touch with you.
Use email forms to handle enquiries, and if you use twitter then why not include a twitter feed somewhere on your website. The more points of contact that you can offer your clients, the more contacts you can have.
Promote your business and engage and involve your readers