tech companies

Google, Facebook and other big tech companies are jointly designing a system for combating email scams known as phishing. Such scams try to trick people into giving away passwords and other personal information by sending emails that look as if they come from a legitimate bank, retailer or other business.

Google, Apple, IBM and eBay are all hiring. Good news for the flagging U.S. jobs market, right? Not exactly: Many of the positions being created are for openings overseas. And that's not likely to change, because companies have learned to do more with less since the Great Recession.

Ryan Jacob was arguably the most popular mutual fund manager a decade ago when, while still in his 20s, he ran one of the few funds focused on internet stocks. Kinetics Asset Management's Internet Fund was the best performing U.S. equity fund in 1998, enjoying a 198 percent return. It rose over 500...