From mucho experience...
If you are not concerned with color accuracy, use a CP. Light the subject from R&L 45 degrees. (multi shop reflectors w/ 5500K bulbs) Pay careful attention to even lighting and make sure that only your lighting is hitting the subject alone. Personally, I use 6 5500K bulbs for even continuous lighting.
Set your best lens to 50mm (least distortion) and position the camera on a tripod where the subject fills the frame. Level the camera's POV with the exact center of the subject and use a remote. Set the camera to AWB and adjust accordingly for manual shooting at a low (100-200) ISO. If you have a WhiBal, put it in a sample shot. (right in the center) Take two w/ a card, 2 w/o.
If color accuracy is of concern, do not use a CP and position you and the camera in the dark. Do all of the above in relation to lighting and shooting.
For color accuracy, open in DPP and click the card for your WB. change the sat to +1 and the sharpness to +5. Export to PS. (for 5500K) Under "selective color", add 20% yellow to the yellows. Some deep siennas (magentas) and vivid blues might require adjustment. I would think for the web, accuracy is of little concern.
If you use LR or ACR, you're on your own for color calibration.
Keep copyright law in mind when photographing copyrighted works. 