Is a Web Presence All You Need?

The other day I was discussing methods of marketing with a personal injury attorney.
He said, "I have a Web-site and a blog, so I'm good on marketing."
I explained that there are so many other types of marketing that can help his business. He's a solo practitioner so his time is limited. But doing some things that could grow his referral base would be simple and inexpensive. I think some attorneys assume that if you have an online presence then that's enough. But it isn't.