Sources

"what is NFC" 

• http://www.nearfieldcommunication.org/
• http://www.nfc-forum.org/aboutnfc/

"Pros and Cons"

• http://www.near-field-communication.us/nfc-pro-con.html
• http://www-cs-faculty.stanford.edu/~eroberts/cs181/projects/2010-11/NFCChips/procons.html
• http://tagsquared.com/blog/nfc-and-qr-codes-pros-and-cons-of-each
• http://www.nearfieldcommunication.org/business-benefits.html
• http://www.youtube.com/watch?v=SllNBBuyARY

"NFC WorldWide" 

• http://files.meetup.com/2610372/2012%2005%2023%20NFC%20Solutions%20Summit%20Meetup_final.pdf
• http://www.nfcworld.com/nfc-phones-list/
• http://www.nttdocomo.com/features/mobility34/
• http://www.nfcworld.com/directory/

"Future of NFC" 

• http://www.wired.com/gadgetlab/2012/09/when-smartphone-replace-wallet/?utm_source=Contextly&utm_medium=RelatedLinks&utm_campaign=Previous
• http://www.digitaltrends.com/mobile/389778/