Congratulations on your launch. The concept sounds like a good one. Here are a few comments...
1.) Tighten up your USP on the home page - It's not obvious what you're doing at first glance of the home page. The big blue block of text in the middle is too wordy and hard to read. Try to distill what you're doing down to a pithy tagline.
2.) Emphasize benefits more on home page - I like how you've split up the home page to cater to your two audiences, publishers and recruiters, but the text underneath seems to be more of a feature list or a "how it works" list than a benefits list.
Try to focus more on the "What's in it for me?" question your core audience is asking. "Get access to the smartest and most engaged people" is probably the only sentence there that really speaks to that question.
3.) Emphasize sign-up more - My guess is that your main goal right now is to get account sign-ups. The hand pointing to the button is clever, but I think you could do more to make this stand out. Also the big green "place a job now" image under the recruiter section seems like it would be a button, but it's not. I'd turn it into one.
4.) Building trust - I think my first question as a blogger/publisher would be "What keeps JBH.com and the recruiter honest? How will I really know that my referral was the winner or not?" I'm not sure how you overcome this, but that was my first question/objection and I didn't really see anything on the "how it works" page that helped allay that fear.
Overall I think this is a good concept and I wish you well. It's a tough market right now but there's no time to start like the present, right? Hopefully we all have nowhere to go but up from here.
Best of luck to you.