Basic Color Space Question

[Dave Gurtcheff]

I have always used Adobe RGB as my color space for editing my photos in Photoshop. My monitor is profiled, and the agreement between my prints and monitor has been OK. After printing, I usually down size to 72dpi, change to 8 bits, and save as a JPG and post on my web site, or add to a digital slide show. I recently changed to Prophoto RGB for my color space, and again the correlation between monitor and prints is OK, but when down-sizing and saving as a JPG for web/slide show the colors are muted and off color. Should I stick to Adobe RGB in order to be able to both make prints and still be able to use for web?
Thanks in advance  
Dave Gurtcheff
www.modernpictorials.com.

[madmanchan]

Do not use a single color space for all your intended outputs (e.g., print and web).

For web: Convert to sRGB before creating your web-sized output images.