Book:

Introduction to Financial Technology (Complete Technology Guides for Financial Services)

I am through just approx 30 pages or so (of 368), and already impressed with the way technology and some fundamental concepts of banking/trading are explained.

I think it is a must read for IT professionals who are keen to develop their understanding of the mystical world of alchemy.

http://www.amazon.com/Introduction-Financial-Technology-Complete-Services/dp/0123704782

Full review to follow, once I have read it completely.

I will encourage you to please share such sources (book/news/articles/insights/etc) on this community.