Giveaway Scout! For bloggers, they’ll publish your giveaways on multiple channels, such as their website, newsletter, Twitter, Facebook and through their widget network. For those of you who like to enter giveaways, you can subscribe to their email service and they’ll deliver lots of contest opportunities right to your in-box!
Giveaway Enthusiasts: www.giveawayscout.com
Giveaway Scout is a great service for promoting and staying up-to-date on the latest giveaways!