PromoRepublic - PromoRepublic is an online editorial calendar for social media marketers and library of custom designed templates and post ideas for social networks. The calendar is stuffed with content for latest trends, important events’ and holidays notifications
Raindrop.io - All your articles, photos, video & content from web & apps in one place.
getStacker.com - Check the top of the screen to. see what's next and its width. Some ladies wear fruit on their head. Who ate all the shapes? You stacked the lot!
Tagpacker - A free tool to quickly collect, organize, and share your favorite links.
uberflip - Organize and Centralize ALL of your Content in minutes
Diigo - Diigo is a powerful research tool and a knowledge-sharing community