There are three types of webmaster microstock image buyers. The first webmaster buys for websites that have to be changed every day. These are like Yahoo or Hotmail, where micro images accompany topical articles meant to draw user attention. The very rules that get micro stock images rejected from the big micro stock image sites work well here.
I like to make sure I have as many resources available as possible. But this leads to chronological backup in image review. Weed a little when you can, but I tend to need some absorptive Youtube palliation to get the photograph examination and deletion sequence going. Yes, I have plenty of room on the hard drive. But I know if I let it go too far, any system crash and blue screen boot is my own fault. Clipping unusable photos whenever I can saves time and resources.