Why have all my bookmarks disappeared from my VerizonYahoo page?

This appears to be a Yahoo fault, not a user problem, and there is hardly any advice posted on the internet explaining one very easy method which will bring all your Bookmarks back – though in a different place. Here is my solution:- On your Yahoo Home page single left click on the box marked “Add Content.” (This box is identified by the green cross in the top left corner.) At the very far right of the page that opens is a purple heading “Browse Content.” Scroll to the bottom of that list, and there you find “All Categories.” Single left click this option to reveal “Tools & Reference.” Single left click this one, and in the black screen space to your left you will now see a number of icons, one of which is “Bookmarks.” Single left click this box, and you will find your Bookmarks now added to your Home page, right above the Mail Preview box. You can now drag this new “Bookmarks” box down your Home page so that it sits below your Mail Preview. From now on – unless BT has more problems with Yahoo - your bookmarks will be permanently accessible. Happy Bookmarking!