The biggest difference is that eToro is copy trading based and Utradea is investment idea based. We let users make their onw investing decision, you don't have to copy another persons trades as you would with eToro.

I just spent five minutes looking at eToro's landing page and I cannot figure out what that site does.

I use eToro and I like it.

It allows you to automatically copy trades done by the others. So instead of trading $10k yourself, you automatically mirror the trades done by an experienced trader.

The platform allows you to find and follow many top-performing traders (eg. that usually obtain 20%-50% trading profit during a year). So you just "follow" them and you can forget about it. Personally I'm at 50% profit by following only one guy for about 2 years.

As a note, this is the guy that I follow, you can see his trading history: https://www.etoro.com/people/jeppekirkbonde/stats

supposedly Facebook for stock market. more like Twitter imo.

No, that's not the gist. The main idea is that you can mirror the trades done by someone, by doing copy-trading. It is a lot better for unexperienced traders to just follow someone that knows what he's doing and let them trade for them.