Check Out Giveaway Scout!
A Free Site to Promote Your Giveaways and Contests!
From Their Site:
Add your blog to Giveaway Scout.
Make the most of your giveaways.
Giveaway Scout is a giveaway search engine. Our users subscribe to receive updates on the latest giveaways on the web. Add your blog and your giveaways will be exposed to our large network or users.
- We publish your giveaways on multiple channels (Our web, newsletter, Twitter, Facebook and widget network)
- Get more exposure to your blog and giveaways.
- 100% Free of charge