If you are not already, I would use Facebook as well for building visibility. Some great ways you can do that:
--Start a group
--Join and participate in others' groups
--Import your blog posts using the Notes application
--Invite others to your events
--Personalize friend requests
--Create a page for your business (separate from your personal profile)
You could do Social Ads which are very targeted, but if you are newer in business, start with trying some of the free methods as listed above.
Hope that helps.