Originally Posted by
GrumpyDiver
sRGB is a colour space and the one you should be using to post any images on the internet (although not for editing). Other common colour spaces are AdobeRGB and ProPhoto; these are better to edit with, but unless you convert to sRGB, the colours will look muddy when viewed with an internet browser.
Likewise, if someone plans to print the images, most commercial photo labs assume sRGB and again, the prints will look muddy if the file uses another colour space.
My usual workflow is to use ProPhoto when I am using raw files and AdobeRGB when I use jpegs (my camera is set for AdobeRGB jpegs) and I will convert in Photoshop before I upload my files for display.