Scrapbox - A new style of note-taking that lets you create, discuss, and learn together in one self-organizing space.
Img.vision - Image hosting & video hosting for eCommerce sellers
Penbook - The nicest freehand writing app ✍️
UploadHouse - Thumbnail and resize your photos and images
OneNote - Get the OneNote app for free on your tablet, phone, and computer, so you can capture your ideas and to-do lists in one place wherever you are. Or try OneNote with Office for free.
ImageVenue - ImageVenue is a great online hosting service that allows uploading pictures for showing creative works with a simple-to-use technique.