Raindrop.io - All your articles, photos, video & content from web & apps in one place.

Pocket - When you find something you want to view later, put it in Pocket.

Keep Everything - Light & Fast Web Archiver for iOS, OS X.

Tagpacker - A free tool to quickly collect, organize, and share your favorite links.

WebSatchel - Copy and save web pages to your own personal archive

Pinboard - Pinboard is a personal archive for things you find online and don't want to forget.