Bookmark managers with drag and drop

Bookmark OS is like Mac and Windows for bookmarks. It gives an intuitive and powerful interface for organizing your bookmarks.
A collaborative bookmark and content manager, because browser bookmarks just aren't good enough. Has a number of different layouts: list mode, Pinterest cards, and grid view.
Deskyo lets you save, import, classify, manage, access and find your bookmarks very quickly. It is meant to look like your desktop and has icons and folders.
Collect.io is an open sourced bookmark manager that will let you save your bookmark info on the backup option of your choice. It is still in development.
Bookmax is an online bookmark manager that offers a list view and folder tree that is similar to Mac and Windows.
Raindrop.io is a bookmark manager that behaves as a single page app. It allows you to drag and drop, change icons, and sort your bookmarks.
Hypershoot captures full page screenshots of the web pages that user's bookmark and organizes them in a grid.
Dropmark is a visual way to organize links and is optimized for designers. It also has team collaboration features.
Bublup allows you to save bookmarks, files, and notes in folders with pictures on them. Bublup also has folder sharing and collaboration.
Memosnag let's you organize your bookmarks in lists within different categories. You can save articles, text, and images and collaborate with others on collections.
The Evernote web clipper let's you save parts of a web page to Evernote where you can organize the clippings in a list-based UI with tags.
DoMarks is an iPhone app that turns your bookmarks into to-do tasks.
Simple and Smart way to organize all of your Favorite Bookmarks, RSS Feeds, Notes and To-do Lists in One Place. More of a start page such as Start.me or iGoogle.
Symbaloo is a start page that allows you to organize links in a gridded tile-like fashion. It allows you to choose an icon for the tile. These tiles can be re-arranged but there are no folders.
Cling has a layout that is similar to a start page but is slightly different in that the panels have lists of items. These items can also be notes, bookmarks, to-dos, and files.
Pearltrees is similar to other card based visual bookmark managers such as Clipping Mini and Lasso. It allows you to organize bookmarks in a grid with screenshots.
Tuxio has a start page feel that has visual icons but also let's you add to-dos, files, and wikis as well.
Starpage is a traditional and fully featured start page with widgets. You can organize bookmarks along with widgets such as weather and news.
Bookmark Ninja has a start page type layout and allows you to add categories, drag and drop, and use different column layouts.
Atavi is a start page based bookmark manager that also has a search engine input which you can change to the search engine of your choice.
Curabase is a simple start page that is team oriented.
Homepage Ninja is a start page that uses small colored icons as bookmarks on a grid and allows for organizing with drag and drop. It also supports to-do lists.
Draggo allows you to organize your bookmarks in blocks like other start pages and uses favicons for visual aid.
Skloog is a basic start page that organizes links as squares in a grid with site icons.
Papaly is a well designed start page that uses favicons as bookmark images.
iCrumz offers a basic start page that uses web page favicons as icons.
Workona is a way to manage your tabs and create documents from apps that you use online. It has a lot of apps that it connects with and allows you to organize them all in one place.
Hitabs allows you to organize tabs for teams and supports drag and drop.
Cluster gives you a nice way to organize your tabs using lists and checkboxes. Has light and dark modes.
A read it later bookmark manager for iOS. Has many ways to save including web saving, email to save, text to save, and bookmarklet.
Save bills itself as the platform for creative minds. It is essentially an image-based bookmark manager that displays your images as mood boards. It has mobile apps.