HoverZoom is based on a deceivingly simple question; Why do I have to click through multiple pages to see the large versions of images? Say a friend posts new pictures on Facebook, or Flickr, or MySpace. Now, instead of going to the photo gallery and then flipping back and forth between opening the images in tabs, or going through them one-by-one slideshow style, you can simple hover the mouse over the images you'd like to see enlarged!
There is a built-in delay before image zooming begins to prevent unwanted zooming as you move your mouse over a page. Currently this means that the mouse must remain still on an image for about a second before zooming will start. While an image is zoomed, you can quickly mouse to other images you'd like to see enlarged as well and avoid the delay.
Here's a screenshot of HoverZoom in action, with the cursor hovering over a thumbnail in the upper left of the page:
Once you get used to hovering over images to see them enlarged, it's really hard to imagine the web working any other way. I find myself wanting this functionality everywhere, and I'm sure support for more sites will be added to the extension in future.
Currently HoverZoom supports images on Facebook, MySpace, Flickr, Picasa, Twitter, Digg, PhotoBucket, Imgur, and Amazon. If there are other image hosting services or social networks you'd like to see supported, send in some feedback at the Contact Page and it will be looked into.
So, what are you waiting for, go check out HoverZoom at the Extensions page today!

