Pinboard understood from the early beginning that regular users of bookmarking tend to prefer text-based and useful feature compared to "stack" of meaningless data. By the way, I don't get why the new delicious introduced stack of info when you can use a tag for it...
Maybe pinboard is for the power users who like tagging and the objective of the new delicious is to attract people doing "stacks" of meaningless images.
Requires a Google account, but free beyond that.
Edit - The above link shows you how to create the javascript bookmarklet for Google Bookmarks.
That said, you can search your Google Bookmarks by adding this to your search engines, more here: http://www.google.com/support/forum/p/Chrome/thread?tid=77fb...