This is one of my all time favorite apps; I use it every day.
Very simple and elegant way to drag drop, store and display images and text from the web and add notes or whatever (that's what I use it for, anyway, art).
It's stable and there are no bloated toolbars, grids, complicated interface or other useless structural impositions - it's the best approximation of a truly straightforward notebook or scrapbook I've found, and I've tried a bunch. Just click on whatever you've dragged in and it opens source. Add whatever text you want. Back up with DropBox if you want.
I use it mostly for several collections- primarily art-related images/ideas and text from the web for inspiration, at this point hundreds of pages worth. It's paginated, so an index is easy to compile. It might be nice to be able to create a category menu (like simple notepads) instead, but I wouldn't change anything else. You can do other clever things with this app (see 'about') - I don't need to.