One part of the answer (and I emphasize only one part) is to determine how much post shoot work you want to do.
If you submit to multiple agencies, you may have to render each photo somewhat differently to meet each submission guidelines. Then there is the actual time doing the submissions, keeping sorted who accepted/rejected what, and all the other record-keeping that will be necessary.
Previously I worked for other agencies and chose the best - Dreamstime. Dreamstime generates good money is honest and has a good policy. Sale will come sooner than You think. In my opinion YES. You should be exclusive. I saw Your portfolio and You have potential. I wish You many sales:))))
Very personal decision with a lot of factors to weigh. I made the decision to go exclusive about 2 months ago and have been very pleased with the results so far. Hard to tell if it's a co-incidence or trend. I'm a relative newbie to this as well, but have been so pleased with DT staff and community, far better than the other sites I was working with.
In your blog you asked if the decision was reversible down the road, I believe the answer is yes after 6 months with a 30 day written notice.
I'm exclusive and it works for me. I have only limited time to spend on shooting and post-processing and I prefer to focus on one agency where I can get satisfactory results - that keeps me motivated. This allows me to get better placement in the searches, therefore better sales. I'm happy because I can get pay outs more often - the royalty paid by DT to exclusive members is much higher than to non exclusives.
What works for one person does not work for all, and what works now may not work later, but it's always possible to get out of the exclusive agreement. It really depends on your personal goals with regards to micro-stock photography.
I became an exclusive photographer a few months back and have not regretted it.
I agree with other comments that your time is better spent working with one agency you know, rather than spreading yourself thin amongst other agencies trying to find out what they like. I am pretty sure there are good counter arguments as to why you should not put all your eggs in one basket but for me exclusivity works.
I really like the fact that you get higher royalties and better search placement which has, without a doubt, helped sales and, perhaps obviously, the money I make.
It's a personal decision but, unless you see how things are "out there" it probably won't be an informed choice. Most of the work - the image itself, keywording etc - happens for the first site. Very little effort involved moving the same file on, especially if you use IPTC. Different images do better on different sites and something rejected on any given site may be accepted on others. Buyers may buy images on several sites but probably favour 1 or 2 so more sites means more potential customers. Other factors might include , for example, restrictions on uploads.
afagundes , In my experience most of the sales are to costumers with some kind of subscription and usually ppl have subscription on one site , no reason to pay it on 3 or 4 ...
most of the sites have 80% unique subscribers ...
I work for newspaper company , and my office have subscription on one place , and other magazines in company the same , so as agencies I work with ... I don' think that anyone would be seriously searching 3-4 sites to spend few cents less ...
Heywoody have few valid points and observations , I agree with him ...
lot of lenses
I'm a newbie in stock photography. I selected DT because it's really easy to upload and tag here! other websites have tons of ridiculous stuff! It takes really serious time and I don't have that much of time...so I dive into DT.com and became exclusive. you to %60 from %25 (sorry if I'm wrong) and it means x2 more income. And if you upload many photos; 0,2 dollar for every shot means something too!
Give it a try...you won't lose anything! you can always check out :)
Admins and other people in DT.com are "real". I'm from a mediterranean country and I like warm people, I like to communicate...DT is good. Give it a chance...