There might be reasons why you want to keep your Tumblr account but delete all your posts. Perhaps you land-grabbed an awesome Tumblr username or URL and you don't want to give it up, but you'd rather people not know about how into anime GIFs you once were, your dark obsession with Henry Cavill, or how often you post about cats during the 9-5 work week. Things like that.

Big fans of the cloud as we are, there's no doubt relying solely on keeping your stuff stored remotely is a risky strategy. Accounts get hacked. Companies fold. And if you don't have backups of your most precious Snapchats and Gmails, then they can disappear in a puff of data center smoke. Here's how to make sure you've got local copies of everything.

Keeping your hands off the mouse and on the keyboard can be a big time saver, but only if you know the shortcuts that make navigating the web easy in the first place. This cheat sheet is packed with keyboard shortcuts for common features on Facebook, Twitter, Tumblr, YouTube, Google+ and even a few for Ello.

Fresh off launching its own GIF search engine, Tumblr's now taking the concept full screen. It also comes with fast forward and rewind controls.

Dear Lifehacker, I know a bit about all the different social networks out there, but I don't want to keep up with a separate profile for all of them. Which ones should I use and which ones can I ignore? Thanks, Broken Social Network Scene

Another day, another web service with lax security. This time it's Tumblr, which has urged users of its iOS apps to change their passwords after it emerged that those apps didn't transmit passwords securely, making it using for the criminally-minded to 'sniff' them.

Are you feeling burnt from Twitter's announcement that it is closing Posterous on April 30? JustMigrate is a free service that will migrate your Posterous Spaces to Tumblr quickly and easily, so you can get back to blogging and sharing without too much hassle.

Tumblr is known as a social platform designed for sharing, re-sharing, and general public display. However, there's a less-used feature that also makes it a wonderful platform to communicate in a much more personal way -- its private blog feature. You can create a private blog full of love and inspiration especially for a specific person, be it a friend who's having a rough day, your mum on her birthday, or your sweetheart on Valentine's Day. It's super easy, it's free, it's fast and, according to the first person I made one for, it's the best gift ever.

Dear Lifehacker, A simple but challenging question: With sites like Blogger, WordPress, Tumblr, Posterous, which one's a guy to choose? Thanks, Beginning Blogger