I’d look over Analytics and see where you seem to be losing the customer. Maybe your call to action isn’t clear enough? Maybe the page is too busy? Maybe it’s too slow? Maybe the call to action is too obvious!
That is not an easy task. You’d be lucky to get a > 1% conversion. You can’t run a freelance business by sitting back and letting the work come to you, certainly not initially. I suppose after a certain amount of time and accolade you could be in that position, but that’s maybe 10 firms in the entire world. Even big companies need to go out and look for work.
We also do a lot of adwords and bing marketing, so…
I would venture to guess the majority of the conversions are from the advertising that’s done. The visits to contact ratio might be a bit better, but the sheer number of visits is probably much much greater. There isn’t much hope of waiting for customers to reach out to you if you aren’t actively marketing yourself in some fashion or another (either time, money or both).
3-6 inquiries a week on 200 uniques a month is quite a high expectation. Just for reference, I get about 5000 uniques a month and perhaps 7 inquiries a week, about 3 of which are actually decent leads that I end up pursuing. It’s all about positioning though and getting the right kind of leads. Blogging about relevant topics which people will find useful, boost your site’s visibility and position you as an authority is certainly a good starting point, but you’ve got to be willing to put in the leg work to get yourself into a position where you can expect people to come to you rather than going out and finding them.
As a side note, I actually find that my best clients tend to be agencies. They pay well, provide a pretty stable flow of projects and handle the process professionally. If you’re interested in working with some and they aren’t finding you then go and reach out to them.