I can attest that it's hard to get into iStock. I've had only had one photo approved from 6 I've submitted and mostly those were photos others thought were pret

I can attest that it's hard to get into iStock. I've had only had one photo approved from 6 I've submitted and mostly those were photos others thought were pretty good on Flickr. One of the photos rejected had been used in publication before (for free).