Some recent Chromium builds added many features that improve bookmark management and they'll probably be available in a future Google Chrome update (to find the difference between Chrome and Chromium, read this post).
The most notable new feature is a bookmark manager that lets you find bookmarks, move them to a new folder or easily delete a large number of bookmarks. In the Tools drop-down, there are options to import bookmarks from a HTML file and to export bookmarks in a similar format.
Another useful new feature is the option to import bookmarks from Google Bookmarks. The browser incorrectly mentions that the bookmarks are imported from Google Toolbar, since the toolbar doesn't even have to be installed. For now, the bookmarks aren't synchronized with Google Bookmarks.
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