I need to draw traffic to my website, and I don't really want/have time to write blog posts. Google adwords seems to work pretty well, but I have not managed to utilize Facebook very well. Since I'm selling a B2B service, I feel it's difficult to engage people on Facebook.
The first uphill battle is the term 'logo'. Logos can be bought for a few bucks on sites that pump out hundreds of generic logos a day. Perhaps you should be selling 'branding', 'visual identity packages', etc.
I know this doesn't solve your immediate challenge of awareness, but by positioning yourself better, you'll increase your value, and validate higher pricing once you do have a lead.