[1] It was an early cloud-based service that allowed users to bookmark webpages and add labels or notes.
[2] The service never became widely adopted by Google users.
[3] Users could securely access their bookmarks on any device by signing into their Google Account.
The bookmarks were searchable, and searches were performed on the full text of the bookmark; including page title, labels and notes.
[2] Additionally, a simple bookmarklet (JavaScript function) labeled Google Bookmark was at the bottom of the Google Bookmarks page which could be dragged to the toolbar of any browser to make bookmarking more convenient.