What is the title of an online dating book best seller?

* How to Write a Killer Online Dating Profile: Tips and Tricks for Creating an Irresistible Profile That Gets You Noticed

* The Online Dating Bible: Everything You Need to Know About Online Dating, from Creating a Great Profile to Finding the Perfect Match

* The Rules of Online Dating: 7 Proven Strategies for Success in the Online Dating World

* Online Dating for Dummies: A Guide for the Clueless, Confused, and Occasionally Desperate

* The Modern Guide to Online Dating: How to Succeed in the Digital World of Romance