Bookmarks can be exported by email as text.
Firstly, tap the Bookmark icon on the tab bar to show your saved bookmarks and any custom folders.
Tap the Export icon on the bottom-right of the left panel.
Select your preferred export function - Mail, Twitter, Facebook
Tap on the Mail dialog and an email will automatically open up with the subject "Sharing bookmarks".
Tap on Twitter to send a tweet using your Twitter account.
The same is for Facebook.
All bookmarked words - with any custom memos - will be automatically inserted into the body of the text.