Facebook

Overlay colorful text on the photos you post? How about mark the end of a relationship without your 500 closest friends getting notified?

Many of these tips and tricks aren't well known, even to veterans of the 1.5 billion-strong people-connector and time-waster. Facebook is constantly updating its service, adding new features or tweaking old ones. A lot can slip through the cracks even if you are scrolling through your friends' updates several times a day.

Here are a few ways to enhance your Facebook experience:

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HOW DO YOU SAY THAT?

In May, Khanna released Marauder’s Map, a Chrome extension that used location data to show you exactly where your friends were. It was downloaded 85,000 times in three days, before Facebook asked him to disable it.

Facebook also disabled location sharing from desktops and subsequently updated Messenger for mobile, giving users the option to control their GPS data. Prior to that, the app had been sharing users’ locations by default since it launched in 2011.

The Dow Jones industrial average lost 5.41 points, less than 0.1 percent, to end at 17,745.98. The index had been down 110 points at the beginning of the day.

The Standard & Poor's 500 index closed effectively unchanged, up 0.06 of a point at 2,108.63. The Nasdaq composite rose 17.05 points, or 0.3 percent, to 5,128.78.

Several companies made big moves after reporting their quarterly results. This is the busiest week for corporate earnings, with 174 members of the S&P 500 reporting.

KEEPING SCORE: The Dow Jones industrial average lost 97 points, or 0.6 percent, to 17,654 as of 9:55 a.m. Eastern. The Standard & Poor's 500 index lost 12 points, or 0.6 percent, to 2,097 and the Nasdaq composite lost 34 points, or 0.7 percent, to 5,079.

In private meetings on Capitol Hill, industry officials have told lawmakers and congressional staff that they already ban grisly content like beheadings and alert law enforcement if they suspect someone might get hurt, as soon as they are aware of a threat.