A question my students often ask me - and I've often asked myself is "Wouldn't it be great to have a keyboard command for creating bookmarks?"
FrontPage is lousy for assigning keyboard commands, however ...
if you customize your menu by placing the Bookmark command on the menu bar - you can activate the bookmark dialog box using <font color=blue>Alt K</font color=blue>.

To customize your Menu Bar.
Right Click on the Menu Bar,
Select Customize from the shortcut menu
Click on the Commands tab of the Customize Dialog box
Select the Insert Category
Scroll to the bottom of the list of Commands in this category and locate Bookmark
Click on the Bookmark command, and drag it onto the Menu Bar!