It's a really simple website which you can bookmark and go back to whenever you want, to paste or jot down any random notes you might want to whilst browsing the web.
Bookmark OS - Bookmark OS is like Mac or Windows optimized for bookmarks.
Evernote - Bring your life's work together in one digital workspace. Evernote is the place to collect inspirational ideas, write meaningful words, and move your important projects forward.
Annotate.tv - Optimize your learning on YouTube
Buno - Simple Note Taking - Simple, minimal & easy note-taking
BookmarkSheet - Your bookmarks in Google Sheets
Chars - Unicode Symbols Keyboard for iOS