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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.

Server crashes, site maintenance, and traffic surges are among the reasons why your favorite site may be down. Regardless of origin, all you're left with is a broken link. Notify Mee can help.

Plug your financial data into Thrive and it will calculate everything from how much you spend on coffee a year to how long it will take you to save for a new house.

JetBytes is a web based file-transfer service that skips the whole remote storage model and shares files directly between users. The interface is dead simple. You go to the website and use the browse dialogue to select a file from your computer. JetBytes generates a random URL for your transaction. You then share the URL with the person you'd like to send the file to.

Friendpaste is a web-based clipboard tool that can quickly shares snippets of plain text and computer code with friends or co-workers.