Inspired by Mihai's discussion of Google Bookmark's XML importing interface, I whipped up a quick bookmarklet for exporting one's bookmarks from del.icio.us to Google. The greatest benefit of this approach is piece of mind, as communication between del.icio.us and Google is entirely client-side. (Note that this has only been tested with Firefox.)

The steps:

• Add this bookmarklet to your browser: del.icio.us to GB
• Go to del.icio.us' export page, which has the form:

  https://secure.del.icio.us/settings/USERNAME/bookmarks/export

  Alternatively, you can just click on settings->export/backup once logged into del.icio.us.
• Click on "export to html"
• When the browser-compatible bookmarks file pops up, just give the bookmarklet a little click. This should zip you to Google Bookmarks' import page, now fully populated.