Absolutely Dismal CTR

I've got a website that I started last month. It's my first "major" website, I guess you could say. It's around 200 pages, almost entirely static content. I usually add 2 or 3 pages to it every week. The site is an informative site, primarilly about a particular upcoming product and secondarilly (is that a word? heh) about the industry that product exists in. My audience is probably more tech-savvy than the average internet user.

Traffic is doing much better than I expected. I've somehow dodged the G sandbox and I even pulled a miracle and got a free Y! directory listing (whether thats worth anything or not these days, I dunno). The site recieves about 300 new uniques/day and each user views about 20 pages of content on average. Nothing awesome compared to most of you, I know, but great for me and one would think I could at least pay for my hosting with that kind of traffic.

Now the problems... with those numbers, I get 5,000-10,000 impressions a day. I've never gotten more than a few clicks in a day and I usually have a whopping daily CTR of 0.1%. Sometimes, the clicks are so low, the CTR reads as 0.0%.

Where am I going wrong?

The primary focus of the site is a product that is not yet for sale, so the ads, while still semi-relevant, are not totally spot on yet. When the product becomes available for retail, I'm sure the ads will become more relevant.

I use across-the-top navigation on the site with 1 ad/page right now... something like this:

------------
¦ Navigation ¦
--------------
¦ Ad ¦ Search ¦
-----------
¦ Content ¦
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The ad block is perhaps TOO perfectly matched to my page style... The links, text, and background are the exact same as the rest of my site. Should I change this to make it stand out more?

Should I add another ad block to the footer? I'd like to stay out of the left and right margins if possible, as I think it makes the site look a lot better if they're empty, but would sticking an ad or two out there help?

I'm nervous that more ads will turn people's noses up, keeping them from returning... which to me, is the most important thing. The site is a hobby first and foremost. If it payed for itself, well, that would just be a nice bonus.