Post ads in Craigslist in the services section. Produce a radio with Google and advertise through there distribution network. Create a TV spot with spotrunner.com.
Do more SEO work on your web site
USE PPC
Do a pod cast
have a good news letter.
Advertise using google adwords. I used this to get site traffic and it works great.
Gain a presence on the internet so that you can approach new clients and say look at us. Our website is number one in Google, we can do that for you too. Also write a blog with some good advice but not too good or they will just read the blog.Start a business social network profile and try to get a lot of quality contacts. More solid presence on the internet the better. Show off your expertise.