Craigslist.org is the biggest source of free advertising to locals, and is free for most categories, backpages.com may be the next biggest.
Advertising makes people aware of your existence, having a presense on the internet may give you a chance to establish a reputation and get known a bit better by prospects.
One could create a free Facebook business page (separate from a personal profile) with sample photos, useful tips articles, etc. along with contact info, one can use their paid advertising's demographic targeting to show ads only to local females of the right age and marriage status. Ads going to fan pages are cheaper than links to other sites.
Pinterest.com the graphic gallery site popular with women would be good if you have photos to share.