Ever scratched your head and wondered what the difference is between RGB and CMYK? And what are those Pantone things, anyway? We were all geared up to tell you, but it turns out the fine folks over at Designer Today have this one covered! This concise but informative little article breaks it all down with great high-level definitions and explanations:
http://www.designertoday.com/Articles/5946/Color.Models.in.Graphic.Design.aspx
As a basic rule of thumb, opt for RGB with online applications and go the CMYK and/or Pantone route for projects that will be professionally printed. But of course, every job is different so be sure to ask your printer or designer if you find yourself in a color conundrum. After all, we can’t always be expected to color between the lines…