Twitter can be used for fun. For art. For everything. That was demonstrated at the second annual Shorty Awards, an award for innovation with Twitter. Newark Mayor Cory Booker won in the government category; he used his account to help residents learn about snow removal (and lots more).

Imagine if you could take a big, powerful projector and put it in your pocket. Pretty nifty, right? Well, that's the promise of relatively new type of gadget, the pocket projector. Though these so-called pico projectors don't offer the features and capabilities of more advanced (and hefty!) projectors, they do allow you to do quite a bit—namely, project your videos or PowerPoint presentations in a jiffy. But the technology is new, and it's hard to decide what pocket projector is the right one for you. Here's our choice of the top three.

Picnik, currently at #42 on our Photo 100 list, is being purchased by Google. As the company noted in a blog post, "More than ever before, people are sharing and storing their photos online. But until recently, you had to edit your photos using client software on your computer." No longer.