There are numerous ways for you to enter contests that I am running:
Weekly: Hot Sheet
Monthly: Hot Sheet & Monthly Newsletter
Random: Facebook (on my author page, as well as in my reader group: Nicole Nation)
Release Day: Colt runs giveaways all day on release day in the Nicole & Colt Facebook group.
Additional: You will also want to pay attention to the #NEcountdown page for additional contests/giveaways such as the Countdown to Christmas
To take part in Nicole's contests, make sure you're following her on social media!