ShortStack Labs has just has come out with a widget that puts a contest right on your Facebook page for as little as $9 a month. A private label version starts at about $30 per month.

The contest complies with Facebook’s terms of service and taps into any marketing database connected with your page on the social network — and if you don’t have one rigged yet, the vendor can set that up for you.

The ShortStack suite already has more than 1,000 Facebook pages as customers, together reaching about seven million fans. And as Jim Belosic, co-founder and president of parent company Pancake Laboratories, says:

The number one request that companies make is for a social media sweepstakes and giveaway function Companies know that the ability to drive conversation, learn about their clientele and spur interaction through social media is one of the most effective and affordable marketing tools available to them. ShortStack now offers a flexible new function that gives companies the tools to get the most benefit out of each sweepstakes and promotion.

Pancake has created a video about the sweepstakes that we’ve embedded below — please let us know what you think about it by posting in the comments section.