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Reddit co-founders reunite at Hipmunk
Hipmunk, an ambitious foray into the packed travel-search market, was founded by one of Reddit's creators and has just brought the other one on as its head of marketing.

Microsoft sends Bing back to school
The company is launching Redu, a site aimed at drawing more people into the debate over the future of U.S. education. Among its features is a Bing map displaying educational job openings.

Microsoft aims to sharpen its CRM pitch
As it gears up to start testing a new version of its product, Redmond says it's tired of letting Marc Benioff's Salesforce.com own the conversation.

Antivirus isn't dead--it's growing up
Despite longtime diagnoses that antivirus software is doomed, security will become a service for mobile devices, experts predict.

Mozilla fixes Firefox holes, curtails clickjacking
Along with the security fixes, Firefox 3.6.9 gets a new feature to help Web developers reduce clickjacking risks. Also: Chrome 6 gets bug fixes.

Norton's new Power Eraser goes free
The tool for removing aggressive malware is part of Symantec's 2011 refresh to its Norton consumer security suites.

Study: Two-thirds of Web surfers fall prey to online crime
Survey finds China, Brazil, India, and the U.S. at top of list of countries with the most cybercrime victims.

Report: Justin Bieber is 3 percent of Twitter
A tweet by designer Dustin Curtis suggests that a Twitter employee has confirmed to him that, at any given moment, teen phenomenon Justin Bieber uses 3 percent of Twitter's infrastructure.

Trend Micro bets on the cloud
Trend Micro revamps its consumer-protection suites by wagering heavily on cloud-based protection, creating security suites that the company claims are faster at detection and lighter on system resources.

Zombies to fill brains at University of Baltimore
No, really. Students getting a minor in pop culture will be learning about the walking dead and how they are represented in various types of media.

New Firefox beta offers audio API, menu tweaks
A new audio data API, default hardware acceleration, and a return of some menu options that had been missing in previous betas are the keystones to Firefox 4 beta 5.

Woman makes teary YouTube movies, gets back ex
A woman is heartbroken after splitting with her lover. So she takes to YouTube and pours out her woes. Moved by her performances, her lover returns.

Microelectrodes help brain signals 'speak'
Using two grids of 16 microelectrodes implanted atop the brain, Utah researchers are one step closer to enabling paralyzed people to speak via their thoughts.

Court allows warrantless cell location tracking
Philadelphia appeals court rules that no search warrant is needed for police to track Americans' cell phone whereabouts but says individual judges can "sparingly" require one.

Android app is like Foursquare meets Pirate Bay
Created as part of The Guardian's Music Hack Day, Piracy app lets users "drop" songs from their music collection in physical locations for other users to pick up later.

Why iTunes song samples are still only 30 seconds
Apple in "active negotiations" for song samples with rights holders, but some music publishers want Apple to pay. How the negotiations fare could set the mood for negotiations over cloud music.

Coming Wednesday: Live at Google's search event
Google plans to host a search event featuring top executives and engineers Wednesday, and we'll provide live coverage in this post.

Facebook closes hole that let spammers auto-post to walls, friends
Social-networking site plugs a second hole that allowed spammers to automatically post to people's pages.

Dell prepares for Windows XP's final act
Computer maker will end sales this month of machines factory-downgraded to older OSes to prepare for an October deadline to halt all shipments of XP.

PS3 firmware update reportedly blocks jailbreaks
System software update 3.42 contains features that PS3 owners say patch the exploit used to let console owners play pirated games.