In today’s Quick Hits, tracking technology helps uncover a cheating spouse, Larry Magid discusses the dangers of oversharing, a teacher gets in trouble over Facebook posts, and a New York woman creates a new online identity with a UK woman’s photos.

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Did iPhone ‘Find My Friends’ Feature Help Uncover Cheating Wife?

Kashmir Hill at Forbes has the story of how the iPhone’s new “Find My Friends” feature may have helped a husband find his cheating wife. Hill writes that the Find My Friends feature makes tracking easy: “Now you can just install the ‘Find My Friends’ app on your wife’s new iPhone 4s without her knowledge and see if she goes where she said she was going to go on a Saturday night. That’s what one Machead claims to have done this weekend, and now he’s planning to file for a divorce.” Naturally, the legality of the spurned husband’s tracking has been called into question. The courts are still debating whether GPS tracking is a violation of privacy.

Larry Magid: Be Careful of Oversharing

In a column for the San Jose Mercury News, child safety advocate and tech expert Larry Magid talks about the dangers of oversharing online. Recalling a recent incident where a Google engineer accidentally made a negative rant about Google+ public, Magid offers tips on how to make sure you know when you’re sharing privately and publicly.

Alabama Teacher Allegedly Mocks Special Needs Students on Facebook

An Alabama school teacher is in trouble after he allegedly mocked students with special needs in a Facebook post. According to the Los Angeles Times, the teacher made derogatory statements about special-ed students and also “posted a picture of himself with a helmet” to make fun of students. The school declined to say what punishment the teacher faced for his posts, but that “appropriate measures” were taken.

The Bizarre Story of How One Woman Had Her Internet Identity Stolen

WalesOnline has the unusual story of how a New York woman used a Welsh woman’s online pictures to set up a fake MySpace account and engage in a four-year online relationship with a man. The details of the story are too complicated to repeat here, but the basic takeaway is that the Internet is a crazy place.