Do you have a myspace account? You can use that as a platform for posting ads for free with pictures.
I use kajiji, Craigs list and if you search for "free advertising sites" or "free landscape advertising" you're bound to find a couple hundred more places to advertise.
Keep a list of sites you are on along with password etc. and have a file set up in your e-mail account where you can put all of the advertising sites messages for activating and editing accounts. If you go back to the site and edit every couple of days (or daily) you can keep your ad higher in the rankings for the site.
The other thing I use is more than one e-mail company (hotmail, gmail, yahoo) for advertising. You can post multiple ads on some sites if it doesn't register an isp for reference in their data bank. Most of the time they use the e-mail address only.
My company also has a flashy website and I blog which also brings in clients.
I have a facebook page for the company. Go for free instead of going for broke!
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