How can I get in contact with Journalists in the personal finance space in the US in the larger pubications?

Forget books, if you want to understand CSR just go online and read about case studies of CSR nightmares and read content from those who hate corporations. This will tell you both the problems and results of bad CSR. The solutions will be obvious.

What? You are obviously unqualified for this position. You need to quit and let someone else do it.

Build a body of work in the form of a blog. Much depends on the size and scope of your company, but branded journalism can really make a huge difference.....

It also greatly depends on "why" do you want the publicity. There are tools to become visible for investors, there are networks to attract board members etc At last but not least - there are networks and tools to get partners and buyers/licensees. Happy to discuss.

With 17+ years in PR, and my work as chair/co-chair with the MIT Enterprise Forum in Chicago, let me add to what has already been said. You have two industries (aka targets) to approach - technology & advertising. Try to include a demo video in your media pitch/kit. Create and tell a story to reporters as to why you created your startup. What need did you see? Is it from personal experience in the ad industry? Something you experienced that was a real pain. Something that you said to self "there has got to be a better way." Find out from your financiers who they have funded and then research to find out which reporters wrote about those companies. I would also suggest putting out a press release. PR Web is relatively cheap, and can help with SEO. If you need a media list I also have a suggestion. Feel free to contact me.