axelnaess
I'm the CFO of a tech startup myself. We are building "The Instagram for online trade". I'd love to talk to you.
If it were my money I would invest a portion of it in startups (but you must obviously know that the risk of losing these money is present), and I would invest most of it in stocks and keep the rest in the bank. I have some personal recommendations, but if you don't have any idea on the stock market I would consider contacting an investment bank. I think that would be reasonable with your amount of money.
To enlighten the discussion, Tise is a service to create online classifieds that can be posted on Facebook. The idea is then to use it as a tool to post on various "Buy / Sell / Swap" groups on Facebook.
In my opinion it can be compared to how Instaweather built on Instagram.