A quick tip for any Photoshop users out there that I only discovered quite recently.  If you are a web designer or developer you fairly regularly wish to get colour values from photos or other websites on the internet. This can sometimes be a pain and I have many times found myself taking a screen shot of a webpage, pasting it into Photoshop and using the colour picker to get the values I was looking for.

There is a little known feature in Photoshop CS3 (it may be in other versions) where you can select colours from outside the document window. To do this is pretty simple....