MicrostockGroup

Do you notice a significant drop in sales when you stop uploading new pictures? 

A few sites show the latest photos to be added to the collection so i suppose if you are uploading on a regular basis you will have a presence (however fleeting) in this section so someone will see one of your pictures and either download that or something else when they look at your portfolio.

I suppose the other factor is that new photos tend to find themselves at the front of the list when somebody does a search.

I have read before you need to keep uploading at Shutterstock to maintain sales.

If you have recently upgraded your camera a bigger picture would certainly be better on the sites that pay for size.

I suppose if you waited a few months between deleting an image and resubmitting nobody would notice. The only problem would be if the site hadn't become saturated with photos in that theme since your first upload.

I know Fotolia won't let you delete anything that was uploaded in Jan or Feb rewards program for a year and Big Stock have a 90 day wait for deletions.

Maybe an idea holding back on a couple of shots of a series as the reviewers would probbaly reject a couple of them for being too samey and phaze out the ones that don't sell after a few months

Its a bit like the exclusivity question without parallel universes you will never know if you are better just having them all exclusive with istock (obviously not the case for most of us).

I think on most sites you wouldn't notice a change.
On shutterstock however, since the default sort if 'newest first' you would definatly notice an increase in sales if you did this.  HOWEVER you also run the risk of them not being accepted the second time, or perhaps them thinking that that subject area is too well filled the second time.  Perhaps you will get a different reviewer with different opinions.  Personally I don't think it is worth the risk.

Sales definatly rise when I upload images, and drop about 1 week after stopping.  I think sales rise because as I mentioned before, at shutterstock the images are sorted by 'newest first'.  A perosn then clicks on an image, perhaps likes what they see, clicks on my gallery and downloads more of my pictures.

I can see why sales would drop off over time on SS, since the default order is by date.  But the default order for the other microsites is as follows:

iStockPhoto: Best Match

Dreamstime: Relevancy (descending)

Fotolia: Pertinance

BigStockPhoto: Search Match (descending)

123RoyaltyFree: Random

So it seems that most of the other sites use some sort of "best match" system as the default.  So I can't see why it would matter on the other sites.