Ever wanted to spruce up your pictures with text or a little bling? Ever had the need for blurring out a student's face so you can post a group photo on the web? Then Picnik is for you?
Picnik is a free online photo editing tool. You can do basic editing like cropping, rotating, adjusting exposure, etc. similar to iPhoto, but Picnik let's you go a step further. You can add frames, stickers, text and more. There are some features marked as premium - those you have to pay extra to utilize.
Here are a few samples: