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Twitter now tracks other apps you've installed

(AP) — Twitter said it is now tracking what other apps its users have installed on their mobile devices so it can target content and ads to them better.

Netflix sues Yahoo CIO for alleged kickbacks

(AP) — Netflix is suing a former company vice president who is now chief information officer at Yahoo, accusing him of receiving money from vendors he hired to work with the video streaming company.

Japanese firm to build rail cars near Los Angeles

(AP) — A Japanese firm said it will go ahead with plans to build light-rail cars in Los Angeles County, a month after threatening to pull out when talks with organized labor groups stalled, transportation officials announced.

California charter school enrollment soars again

(AP) — The number of California students attending charter schools has risen to more than a half million.

Space station's 3-D printer pops out 1st creation

(AP) — The first 3-D printer in space has popped out its first creation.

Feds to provide tech assistance to LAUSD

(AP) — The U.S. Department of Education will be sending a team to work with the Los Angeles Unified School District on tech issues.

Google's latest: A spoon that steadies tremors

(AP) — Google is throwing its money, brain power and technology at the humble spoon.

Apple's market cap tops $700B for the first time

(AP) — Apple's market capitalization surpassed $700 billion for the first time Tuesday morning.

High-end home sales surge in Southern California

(AP) — A new report finds the number of Southern California homes bought for $2 million or more in recent months is the highest on record.

San Francisco turning to groundwater for its taps

(AP) — San Francisco's pristine tap water from mountain runoff in the Sierra Nevada soon may be a little less pure.