A few sites I recommend for further reading:

#5 Your willingness to unselfishly service us  makes us feel good about ourselves:
http://www.yourtango.com/experts/david-m-matthews/men-and-oral-sex

It’s about how men feel love:
http://www.thefemininewoman.com/2010/02/why-men-love-blow-jobs/

What not to do:
http://thoughtcatalog.com/phoenix-askani/2013/10/how-to-blow-like-a-pro-10-donts-of-giving-blowjobs/

Blowjobs: Not a big deal:
http://www.thefrisky.com/2013-11-14/girl-talk-the-truth-about-blowjobs/

Blowjobs are mandatory:
http://frankieroseblankstheworld.com/blowjobs-why-they-are-mandatory-and-why-you-should-love-giving-them/

Don’t Spit, Swallow Cum:
http://www.dontspitswallow.com