Not for microstock. Read the contract. As it is, I already get paid ridiculous amounts. Every licence is for single usage, up to a certain amount of items, like one magazine up to 250'000 issues. If you want it for two different issues you have to buy two different licences. HELLOOOOO!!!!!
Please quote the part of the license terms that say this. I have just re-read IS and FT and found no such restriction.
Only in BigStock I see this restriction:
The license is limited to one usage per download. For example, if an image is used in a website design and in a business card design, this is considered two usages for which the image license should be purchased two times. Using an image in multiple products without purchasing the licenses for each usage violates this Agreement.
IS and DT limits the print usage to 500,000 copies.
Regards,
Adelaide