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If you've ever had a friend send you a link that you just weren't sure about, webapp Variably Safe For Work (semi-)safely previews the page before you actually visit it.

Our Hive Five asks readers to identify five of the best tools for any job, then vote for the absolute best. Here's a look back at the winners—the best of the best—from each week.

Online image editors have rapidly become very sophisticated. Last week we asked you to share your favorite online editors, then we rounded up the top five. Now we're back to share the results and announce Aviary Phoenix as the winner.

Editing your images on a desktop image editor might be ideal, but sometimes you're away from your home workstation and need to do some impromptu editing. Check out these five options favored by Lifehacker readers. Photo by karlfrankowski.

Desktop image editors are great, but we're not always at our home workstations. Thankfully there are quite a few capable and feature-rich image editors to be found online. Let's hear it for web-based editing! Photo by dogbomb.

We recently took a first look at Wolfram Alpha's "computational knowledge engine." Now Wolfram has announced its first series of updates aiming to improve the already impressive search engine's capabilities.