I wouldn't mind keyboard shortcuts for the web app I use the most, Google Search.

I think, that is interesting for all.

The browser itself supports keyboard shortcuts, though the Google Labs also released a specific app for this once:
http://blogoscoped.com/archive/2003_09_03_index.html

CTRL(/Command)+T then CTRL(/Command)+K for Firefox.
See this page on Mozilla for more.
http://www.mozilla.org/support/firefox/keyboard

And today, as part of Google Experimental, they announced...

Keyboard shortcuts
http://www.google.com/experimental/#BetaShortcuts

:-)

I can't understand why they didn't add keyboard shortcuts for "next page" / "previous page" or for image search, Google News etc.

Oh yes, because thats totally related. Seriously don't give him hits by checking it out.

Hello all
  
How I can change avatar in this forum?

Mary, I'll create one for regulars after time...
http://blogoscoped.com/forum/rules.php

CTRL(/Command)+T then CTRL(/Command)+K for Firefox.
See this page on Mozilla for more.

Google is working on this, look at the Experimental search:
http://www.google.com/experimental/index.html#BetaShortcuts

Sie sind mit Computern kompatibel und werden die Bequemlichkeit des Nehmens der Fotos erhöhen.

Der LCD Schirm ist 1.5 Zoll.

James Xuan: Was that directed towards Haochi? What hits? *confused*

(Mysterius, I think James was referring to a spam post which has since been deleted.)

Yes I was referring to a spam post.