Stuff that's helped many of us:

LOVE LANGUAGES by Gary Champman.  It's a great way to learn about yourself and others.  Check out the quick online quiz, or order the book.

 Fit to Be Tied  by Bill Hybels & Lynne Hybels

Love for a Lifetime:  Building a Marriage that Will Go the Distance by James Dobson

 Sex God:  Exploring the Endless Connections Between Sexuality And God  by Rob Bell

Check lots of resources from Family Life, including conferences (Weekend To Remember), books and podcasts.

Boundless.org has many resources for dating and relationships

Think Marriage also has tons of great resources for any relationship.  "Better relationships start here."

What Do healthy relationships look like?  Some questions to ask to find out...

Just for Guys
Every Mans Battle  Books, seminars, & lots more for guys
Wild at Heart  learn lots about how men tick, and what they're made for... byt John Eldredge
 Gods Gift To Women: Discovering The Lost Greatness Of Masculinity by Eric Ludy


Just For Ladies
Every Womans Battle  Books, Authors & lots more for ladies
 Captivating: Unveiling the Mystery of a Woman's Soul by Stasi Eldredge
 Authentic Beauty:  The Shaping of a Set Apart Young Woman by Leslie Ludy
Carolyn McCulley's blog on women, health, family and lots more