Ember for Mac
Browse the web, subscribe to websites, save and share images, annotate those images, post to Tumblr, and generally keep all your favorite stuff from the web and personal life in one place. You can even import screenshots from your iPhone and iPad and it will sort them accordingly. It’s like a mix between Safari, Evernote, Skitch, NetNewsWire, iPhoto, and probably a ton of others I’m not thinking of at the moment.
Ember is available on the Mac App Store for $50. Not the cheapest app around, but then again, this definitely isn’t your grandma’s scrapbook.