When you export, you have the option of 3 color spaces; ProPhoto RGB, AdobeRGB (98), or sRGB. You want to select the most appropriate space. If you were sending the file to be printed or published, you would want the embedded space to be what the printer/publisher specifies. If you are exporting for "general" viewing, then you would want to choose sRGB.
hope this helps . . .-John
my target was the web so I did change my settings to sRGB and my images did improve from being flat however the color shift of the skin tones was horrid, magenta overload!
I also tried exporting to a tiff to batch edit in PS, add some punch and sharpening actions and then save for the web. Had the same problems with color shift.
I think I need some advice on a good workflow plan- I look at everyone else images on the web and they are great my lack clarity and are not vivid. Granted I am not a professional yet but my pictures are not as bad as they look on the web.