All the talk lately has been about ride-sharing, electric cars and semi- and fully-autonomous vehicles. Well, it would be wise to not forget about flying cars. At least, that's what Alphabet (GOOGL) - Get Report founder and CEO Larry Page would have you think. 

Reportedly, the man has invested a pretty penny or two - more than $100 million - in the venture. His company, Zee-Aero, is located next to the company's headquarters in Mountain View, Calif. He's also put money to work in Kitty Hawk, a competitor - yes, there's more than one! - located in the same city. 

In all, there's actually about 12 companies working on the concept, but the two listed above are the closest ones to having a finished product. 

If you think getting regulation for autonomous vehicles is tough, wait for this idea to take hold. However, this pie-in-the-sky, Jetson-like idea isn't just a fantasy. In fact, Zee-Aero's two prototypes actually take flight regularly out of Hollister, Calif. 

Even NASA backs the idea, saying the technological advances over the next five to 10 years will be quite impressive, adding that "air taxis" could travel at up to 200 miles per hour. These could be good fits for Silicon Valley, due to high incomes and high congestion, they say. 

Shares of Alphabet closed at $742.52 Thursday, down 0.06%. 

In an effort to sell more vehicles, Tesla Motors (TSLA) - Get Report unveiled the highly anticipated Model 3 several months ago. The company has received nearly 400,000 pre-orders for the vehicle, which starts at just $35,000 - far below that of its Model S sports car and Model X SUV.

However, the company is also reportedly making the Model S more affordable as well. Starting near $76,000, many of those delivered to customers cost roughly $100,000. 

$100,000 is no sneeze when it comes to many Americans looking for an electric car, or any car for that matter. Apparently, the price of one version of the vehicle could now cost "just" $50,400. However, that includes certain federal and state incentives ($7,500 federal, $2,500 from California), as well as an estimated savings of $6,800 in gasoline in the first five years. 

So the price is somewhat misleading. Still, if these incentives and savings are factored into the current starting price of the Model S, it compares favorably. The cheaper, rear-wheel model costing just over $50,000 is almost $9,000 cheaper than the starting price of the current version when incentives and savings are factored into that as well. 

The cheaper, all-wheel version would reportedly cost $55,400 after savings and incentives. 

Shares of Tesla closed at $229.34 Thursday, down 2.6%.

I can't keep track of the going rate for social media login credentials, but it doesn't seem like $5,800 is all that expensive for the login names and passwords to more than 32 million Twitter (TWTR) - Get Report profiles. 

But that's what one hacker has up for sale for anyone who would like the list. Maybe multiple people buy them? I don't really know how the black market for social media accounts works. Perhaps if it is a fake - which doesn't seem likely, but hasn't been ruled out - then it could be a quick way for Tessa88, the apparent hacker, to make 10 bitcoins per sale, which is what they're asking for, but translates to that $5,800 figure listed above. 

For its part, the company said it believes its network has not been breached. Other reports have apparently agreed, saying Twitter doesn't seem to have been hacked, the users were. That's not exactly comforting either. The social media company is taking steps to help protect users from this current issue. 

Facebook (FB) - Get Report CEO Mark Zuckerberg recently had his Twitter and Pinterest accounts hacked, which followed a large data breach at LinkedIn (LNKD)

Random fact from this hacking: More than 20% of the current Twitter list is composed of Russian-based emails. 

Shares of Twitter closed $14.60 Thursday, down 2.35%.

Alphabet and Twitter are holdings in Jim Cramer's Action Alerts PLUS Charitable Trust Portfolio. Want to be alerted before Cramer buys or sells GOOGL or TWTR? Learn more now.

This article is commentary by an independent contributor. At the time of publication, the author held no positions in the stocks mentioned.