weheartit.com - We Heart It lets you create an online album (a heart) with your favorite images and videos.
LoveSales - Find and save products you love, get alerted when they go on sale.
Pinry - Pinry is a private, self-hosted, Pinterest inspired by Wookmark and built on top of Django.
TrackIf - Alerts you if the price of your favorite products drop
Raindrop.io - All your articles, photos, video & content from web & apps in one place.
Giftwhale - Giftwhale allows you to create personalised wish lists online.