Homepage.ninja is described as 'Homepage helps you to save and organize your links'. There are more than 25 alternatives to Homepage.ninja, not only websites but also apps for a variety of platforms, including Google Chrome, Mac, iPhone and Windows. The best alternative is Raindrop.io, which is both free and Open Source. Other great sites and apps similar to Homepage.ninja are GGather (Freemium), Bookmark OS (Freemium), Bookmark Sidebar (Free, Open Source) and Droplr (Freemium).
Collect any article you want to read later, image that inspired you or video you want to watch later. Save anything, never lose it and view it without ever leaving GGather. Organize your bookmarks with tags and notes. And GGather tags are special.
Bookmark Sidebar is an extension for Chrome, which adds a toggleable sidebar with all your bookmarks on the left or right side of your screen. You can sort, edit, delete or rearrange your bookmarks easily from within the sidebar.
Dropmark is a visual collaboration tool for creative people and teams. Drag and drop to the menu bar app, and your files are automatically uploaded to the cloud. Organize and invite colleagues to view and collaborate privately, or share your content with the world.
LinkAce is meant to provide a long-term archive of links to websites, media files or anything else which has a valid URL. Store interesting articles, neat web tools or libraries you may use sometime in the future.
"Highlights - Highlighter and Web Clipper" chrome extension by Learning Paths, helps you organise your content across the internet. Highlight, Tag and add notes to relevant content across the internet.
Bricks is a collaboration app for architects & design professionals. Bricks uses agile methods to help AEC teams coordinate efficiently on architecture & construction projects, with short iterations, more transparency, higher quality & reduced cost.