The first question to ask is how many people in your service area actually use the Internet to find service companies. I've found that companies that cold call have all kinds of numbers for this (similar to Yellow Pages account managers claiming X number of calls per month) but the best method to determine how much it actually gets used is to look at your own/families search history and to ask friends and neighbors how much they actually use it. Despite popular belief, there are still quite a few places that primarily use the phone book or other printed materials versus trying to Google it. For those servicing areas where the Internet isn't used that often, now is the time to start getting ready for when it is.
For areas that have a lot of Internet usage, there is a reason why Internet advertising companies exist. Just as we specialize in resolving wildlife conflicts, they specialize in promoting company's to prospective clients. I'm talking more than just page rankings with the good companies. I'm talking about focused search zones, search phrase conditions, websites with enough information to make prospects want to call instead of doing it themselves, pay-per-click campaigns, social media and name branding to name a few.
These companies charge for their services just like we charge for ours and so we should expect certain results by hiring them. Again, just like in our industry, we need to set and understand the expectations set within the financial constraints we've placed and monitor the results received. If we don't like what we're paying for then we need to go to another company (which is why we need to understand term length, cancellation fees, etc).
Developing a true Internet identity is a full time job that most of us cannot dedicate the time/resources required to make it very successful. So talk to multiple companies (like Mike Hurley's to name a T-Man member) to see what they offer, what it will cost, and what you can expect from them. Just remember, you can spend $100 a month, $10,000 a month, $100,000 a month or more on the Internet but if your client base isn't using it to find you, you're just wasting advertising dollars.