cordoval

<p>This plugin is pretty simple but it can evolve very powerful. It displays current blog entries categorized as Giveaways and allows for setting their time of validity during which they should display on the sidebar widget.</p>
<p>First version, more coming soon.</p>
<h3>Arbitrary section</h3>


WP-Giveaways

Displays entries categorized as Giveaways and allows for setting their time of validity during which they should display on the sidebar widget.

SweepWidget

SweepWidget – Contests, Giveaways, Sweepstakes & Photo Contests

The best free WordPress contest tool to run giveaways, sweepstakes, photo contests, voting contests, raffles, and instant coupons.

WP-Giveaways vs SweepWidget – Contests, Giveaways, Sweepstakes & Photo Contests