Facebook vs. Google, President Trump and Ashley Madison info goes public

It's a down day for stocks across all the major indices (^DJI, ^GSPC, ^IXIC) as China weighs on the market once again and oil (CLV15.NYM) follows stocks lower.

Here are some of the other stories Yahoo Finance is keeping an eye on today.

Autoworker union unhappy with GM
Your next GM (GM) car may not come from Detroit. The automaker is reportedly considering importing Buick vehicles built in Chinese factories. If GM follows through with the plans, they would be the first major automaker to manufacture a car in China and sell it in the U.S.

Facebook vs. Google
Facebook (FB) has overtaken Google (GOOGL) at least when it comes to news. The social media site has become the top referral source for online media, according to traffic analytic firm Parse.ly. Should Google watch its back?

Ashley Madison hack
A few weeks ago word got out that hackers had attacked the adult dating website Ashley Madison. Well, now it seems the information they obtained is becoming public. Full names and emails as well as partial credit card information and dating preferences are among the data that cyber security experts are calling "legit."

President Trump?
For better or worse Donald Trump seems to have figured out the secret to attention-grabbing campaign stops, but what would President Trump actually be like? Yahoo Finance's Rick Newman did some digging and found that the billionaire candidate actually has some real policy ideas.