so i have to think about other monetarization!
You paid 0.37 LTC per share, it is about 4.44 LTC per year. With target P/E of 10 it would justify share price of 44 LTC.
So I'd say monetization is fine.
However, I think you might want to reorganize site layout. It is pretty, yes, and information is there, but it's hard to get it. I shouldn't need to click buttons to get to info.
Please check how it's done on bitcoinwatch.com: I can get all the basic information without clicking anywhere. Particularly this view: http://bitcoincharts.com/markets/
Instead of using tables you have separate panels for each exchange, WTF?
You'll get much more pageviews from people who use your site for a quick glance on current exchange rate than you'll get from long-term chart investigators. So there should be a page which: 1. loads quickly. 2. presents information all important information in a nice view.
Also, mBTC look very unfamiliar. People are already used to things like "LTC/USD 0.0554" so when they'll see that you're presenting information in a different way they might get reluctant to return because it challenges them to use mental conversion. At least on front page it should display exchange rate in same way other sites display it.
As for monetization, a service like this could have a great partnership with exchange, but I doubt they'll agree
Otherwise, great job, I'm a proud shareholder