Add A Favorite

From PhotoblogWiki

You can add a favorite image to your collection from anyone's blog. The only exception is you cannot add your own images.

So the first thing you want to do is find the image you want to favorite.

You want to mouse over that image and a menu to the right of the image will popup. Then you want to mouse over the star icon as shown.

You then will click that star icon and you will get a box that pops up where you can describe why you like the image if you want to.