Email Marketing: The marketing plan via email is quite an old one. It is an effective and popular way of promotion for many small business owners. Get the email data of your possible customers and send them your customize business emails to let them know what you are offering.
I once sat in a meeting of project and business updates and suddenly one of the directors said, actually with all that we have now we can be in the medical device market. Violaaa!!! This medical device company used to service government hospitals and they have all the equipments. It's just that they never thought of going direct to the hospitals and take the lion share of the business. In that meeting, after going through the company yearly updates, this "innovation" came instantaneously and the next year they are pitching about it to the government hospitals directly.