Dropmark is described as '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' and is an app in the Web Browsers category. There are more than 25 alternatives to Dropmark for a variety of platforms, including Online / Web-based, Google Chrome, Mac, Windows and iPhone. The best alternative is Raindrop.io, which is both free and Open Source. Other great apps like Dropmark 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.
Watch youtube / vimeo videos, listen to soundcloud audio, see images, read articles and visit website links and much more right from one dashboard, while saving your links in an encrypted form (Even we can't read them!).
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.
Lasso is an online bookmarking service that is optimized for collecting online resources as individual or part of a team. Lasso is also valuable when you want to publish collections to customers and/or followers.