When you are writing for blogs or technical reference manuals, then screen capture program should become a close friend to you. There is Snagit! which is very popular and powerful, but it is not free. It will costs you around $50USD.
I’ve discovered PickPick from Softpedia, actually the developer page is on http://picpick.wiziple.net/ and find it very useful and powerful. And the best part is that it is a freeware!
It features a powerful capture tool, image editor, color picker, color palette, pixel ruler, protractor, crosshair, whiteboard and etc. You can use all these tools freely.
You can make screencap with shadow effect, etc.
You can also find the html code of a color on any place of your desktop (color picker), so you can easily make any adjustment to your web layout.
