Any suggestions for revenue generating widgets or RSS feeds that aren't just ads?

I have Adsense and direct-sell ads, but like to include other widgets to break up the monotony and help prevent ad blindness. I used to use Flipp.com (a coupon widget) and a Coupons.com RSS feed, but both have gone the way of MySpace :-/

I'm still using news headlines, and two widgets for new topics being posted on the site. But I used to bring in about $300 /month from Flipp and Coupons.com, so I'd like to find something else that would replace that revenue stream.