This website offers a ton of information about money.
The home page offers an app for tracking your budget while the blog covers economic information and trends dealing with money. A couple of my favorite articles on the blog are:
A pictorial history of money: http://www.mint.com/blog/trends/a-pictorial-history-of-us-currency/
which pairs nicely with:
Dissecting the Dollar Redesign Project: http://www.mint.com/blog/trends/dissecting-the-dollar-re-design-project/
An image of the amount of packaging for a single Barbie Doll: http://www.mint.com/blog/trends/plastic-surgery-dissecting-barbie-packaging/
The Debt Generation: http://www.mint.com/blog/finance-core/the-debt-generation/