The IndieNext Deadline for April 2015 and beyond is tomorrow, February 3. Take 5 minutes today and send off that IndieNext nomination you’ve been planning.
The ABA makes nominating titles easy. Use this form on their website or click here to send an email. They recommend that you write conversationally, as if you were handselling to a customer. (And they even promise to take care of grammar and punctuation.)
If you’re looking beyond April, all of the deadlines for 2015 lists (and part of 2016) are provided on the ABA site here. So if you just finished a book that will not be released for a while, go ahead and nominate it. They’ll hold onto the nomination until the appropriate time.