This is nothing but stock market info porn. All you are doing is using web design to convince me to take seriously your opinions on whether GS or TWTR is going up or down. It's the web 2.0 version of an analyst in a nice suit. It looks cool, but no reason to believe there is real substance.
The fact of the matter is that if I'm actually going to be speculating on individual stocks (which I do, but mostly as a quant), I need a lot more info than this.
I don't want to be entirely negative, so I'm going to suggest a tool which I think might actually be handy, and could use with some nice presentation. Ask the user a little about themselves, and then suggest stocks/ETFs they can put money in to hedge their risks. E.g., if a person works in tech, suggest to them a portfolio that is disproportionately less tech heavy - that way, if their industry tanks, their retirement won't necessarily do the same. If a person expects lots of medical care later in life, suggest them a portfolio heavy on medical stocks so that if their expenses go up, their investment does too.