Lynx stores Bookmark files on your local machine. You can update these from within Lynx, or with a text editor:

Updating within Lynx

• The append feature, invoked by pressing an 'a' while viewing a document will add the current document or the currently highlighted link to your default Bookmark file, or to one you select if multiple bookmarks are enabled.
• The remove feature, invoked by pressing an 'r' when a Bookmark file is being displayed, will remove the currently highlighted link.
• You may set and modify the paths and names of your Bookmark files and enable or disable multiple bookmarks in the Options Menu.

Updating with a text editor

Lynx stores its bookmarks as an HTML file, using an unordered list (UL and LI tags). It expects the list items to be one per line, without wrapping.