By the way Paul, I don't want to intimidate you by making it sound too complicated. I just uploaded the original JPEG file that came out of the camera
(download here). In all honesty, it would be 100% fine to just use that. My post-processed version is on the left, straight out of the camera is on the right.
Yes, you can eek out a bit more performance by shooting in RAW and doing some post processing, but it's really not that necessary. Most important is to get nice even lighting and square up the camera with your poster board as best as you can. Then just shoot, shoot, shoot and upload. You can even set your camera to shoot RAW + JPEG. Then in your camera options set the JPEG to a lower, more web-appropriate resolution -- i.e. if you camera is 12mp, your in-camera options might let you also pick from 8mp, 5mp, and say 2mp. If you pick something like 5mp you won't even have to resize after you shoot -- and you'll still have the original RAW file if you need higher resolution options at a later date, or if you decide to start learning about post-processing.
As a reminder, here is a comparison of my post-processed version vs. HA. So basically I got the same quality as HA* by using the JPEG as shot.
*FULL DISCLOSURE: HA uses a slightly lower resolution image than then ones I uploaded so don't judge too much on sharpness...
