The easiest way to post pictures without a doubt!
When I upload mine on the computer I right click on the image, open with "paint", click on the resize image tab, click on the pixels option, and if you do this you can put right in there you want it 640 wide and it does the rest for you.
As opposed to PB you never have to worry about deleting pictures or running out of room.
Love imagelinky! Thanks for sharing this awesome tip.