Show only one offer from each major brand on your homepage. Repetition and the horizontal listing style isn't in your favor unless you can keep the list short and super high profile. You gotta recognize that less than 1% of your coupons will be in high demand, and you have to serve that first.
Lot's of little UI tweaks will be hammered out when we hire a proper designer, but there have already been some good points that will be implemented.
You need facebook and twitter like/tweet buttons on the detailed pages.
FB is already on the detail pages, branded as "Recommend", we're working on conversion tracking thru tweets now, so fingers crossed, those will be there within a week.
Above all, carve out a niche or unique angle. Right now, its just another coupon site.
I don't really agree with that, but perception is often reality, is the concept of the site not coming across or is it and you still think it's just another coupon site? (As far as I know none of the big boys like fatwallet/RTM does cash back via referrals to your social graph but maybe I missed somebody)