Bookmarking with your Chrome Bookmarks Bar is very helpful. For the sites you might be able to recognize by just the icon, right click on the icon and select edit. Delete the text and click save to just see the icon in the bookmark bar.
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If your bookmark bar isn't showing, click the ellipses (three dots) in Chrome, select Bookmarks, and Show Bookmarks Bar.
Right-click on a bookmark already in your Bookmark Bar and select Edit...
Delete all of the text in the name field and Save.