caret navigation (getting a text cursor) in Google Chrome?

1. Press Ctrl + Shift + J to open the console.

2. Enter the following into the console and press Enter:

   document.body.contentEditable=true
   

Now you get a cursor and can even edit the whole page.

Recently Google Chrome introduced built-in functionality to browser with caret, just press F7 or go to Settings > Advanced > Accessibility and then turn on "Navigate pages with a text cursor" switch.

Vimperator has caret browsing. The default keybind for it is C.