From the Site:

Here’s a little known secret: bookmarklets work on your iPhone.

But wait, what are bookmarklets?

Bookmarklets are little pieces of Javascript code that can be saved as ordinary bookmarks in your web browser. They enhance your browsing experience by giving you super-instant access to useful tools and special functionality.

There are billions of them, and below are my favorites. These work wonderfully on a computer, but they’ll add an extra boost of functionality to your iPhone.

To use, just drag the links into Safari’s Bookmarks Bar and synch them to your iPhone via iTunes. Next, bring up the Bookmarks Bar folder on your iPhone and simply tap the bookmarklet you want to use.

See the List