I've had a low acceptance at IV as well ... only 2 out of 9 submitted. I just contacted them (through their site) asking what images they want/need. Hopefully I'll get some decent answers. I'll let you all know what I hear. 

I'm a relative newbie too ... been involved with microstock for about 2 months. I'd love to be interviewed. A few interesting pieces of info about me ... I'm a graphic designer by profession and have been into photography for about 3 years. I don't know if that makes me a more appealing interviewee, but I thought I'd put it out there. 

I just checked SPM's site just now and it says they're up to 60048 images. All I had to do was click on "go" near the search box without having typed any criteria in.

I got at a very rough number for SPM's numbers (as of June 7) ... 59,000+. I just did a blank search on photos (it didn't require a word to be typed in) and it returned all the photos it had and a number of 59-some thousand came up. Does this method work for anyone else?