Sutle - Save and organize resources into a directed learning path.
Soup.io - Soup is a tumblelog, a super-easy blog that can do more than just text: post links, quotes, videos...
Postly - Turn your photos into REAL beautiful postcards. Available on iPhone, iPad and Android. Make friends and family smile with a postcard!
Pillowfort - A new multi-media blogging platform
Developer's Guide to Content Creation - The book for devs who want to make quality technical content
Tumblr - A feature rich and free blog hosting platform offering professional and fully customizable templates, bookmarklets, photos, mobile apps, and social network integration.