MicrostockGroup

no

Some people seem to experience similar problems, the reason might be that the search functions are not all working properly http://www.istockphoto.com/forum_messages.php?threadid=90200&page=1

I haven't had much of a drop, but did notice softening sales on Thurs & Fri.  I put it down to the search issues.

Monday sales were back to typical for me.

No issue here too. I had sales in the last few days as well as in the whole month. June was the BME for me.

I don't even remember when I had sale on iStock 

My sales have slowed a little. I wonder if buyers are having any of the same IE8 issues which have made logging in difficult for some submitters?

More likely to be a sign of having such a small portfolio. Build a large, well shot and diverse portfolio and days of zero sales will be a distant memory.

I think the "small portfolio" / "big portfolio" does not reflect the actual problem. Might have been in the past when more uploads mostly meant more downloads. But a portfolio built from images that sell just randomly will always see random phases of less or more downloads. Scroll a bit down here to see the "Related Topics" and you will see that others always had similar issues on different sites. It's just part of how it is.

edit: Just having to add that you started uploading at iStock almost at the same time as I did but I still have three times more images online and I feel I have been terribly lazy for months in between.