Looking for a great place to find and/or list your giveaways? Try out Giveaway Scout!
For Bloggers : "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" Giveaway Scout automatically scans your blog for new giveaways everyday, and will post them for you. You just have to make sure the word "giveaway" is in your post title.
For Readers : Giveaway Scout automatically scan thousands of blogs to bring you the latest blog giveaways, sweepstakes and contests. Their lists update every hour! You can sign up for their newsletter, follow them on twitter and/or facebook.
Go check it out!