If you want to track the inbound traffic to your website from Tasty Swag and all other referring websites
you should definately use google analytics for the job.

Ultimate Google Analytics is a plugin to add Google Analytics JavaScript to each page on your blog
without making any changes to your template. The plugin can also add tracking to outbound links, downloads from your own site and mailto: links

Using various social bookmarking sites to share your giveaways is a great way to gain more traffic.
Tasty Swag makes sharing your giveaways easy with these features built right in.

Facebook is currently one of the largest social networking sites. Update your status on facebook with
your giveaway details and all your friends will see it.

Twitter is a powerful way to connect with more people and easily share your giveaway. If you're new to
twitter watch this intro video by Common Craft http://www.commoncraft.com/Twitter

Tweetaways makes it easy to pick a random winner for your next twitter contest or giveaway.

Bit.ly & Cli.gs are two similar services which shorten long urls so you can more easily share them.
These services also track your shortened url analytics.

Ping.fm allows you to update multiple social networks at the same time. After you've joined a few
social networks use Ping.fm to broadcast your giveaways easily across all your networks.

Many of our users are hosting giveaways on wordpress. To help out we'd like to share this great
resource: The Definitive Guide To Higher Rankings For Your Blog by Yoast.