How are you planning on getting traffic in the long term? There are free alternatives like http://search.creativecommons.org/ so I suspect most customers will be people who don't know about the alternatives.
I'd be sceptical if you could get many people to pay for it unless you found a good source of people who weren't very Internet savvy.
I think if your search engine is better at finding images compared to other sites, the best thing to do might be to let people search without logging in, but only show them a thumbnail, and to find out where the image comes from, they need to pay. However, you will still need to find a way to attribute images if the license terms require that.
To be honest, I don't know how to get revenue in the long term. What I want to do is to break even so I can justify investing more effort.
I would love Sprixi to be free and then money around the edges (e.g. API). However, that will require more work. Being bootstrapped and already at it for a few years, I can't keep working for free.
Interesting idea about moving the pay wall - thanks.
Just tried it. Basically, it lets you browse flickr images (in a layout that does not fit on my netbook screen) and asks you to pay for that. The good thing is, it shows only Creative Common images (like Google Images or Flickr do too).
Just an idea, charge for the API. I can easily imagine this being very useful for a feed/content provider to automatically source an automatic image related to a news feed/ or product.
I do like that idea. Being bootstrapped I needed to be a bit more direct with getting revenue from the majority of the traffic visiting us in the short term.
What do you think of our very lightweight freemium model? (Searching for dog or cat is free, other searches are behind the pay wall.)
That's not freemium. It's a demo. With true freemium, someone can use your service regularly while on the free plan. Very few people are going to use your service just to find dogs and cats.
Not saying you shouldn't keep it (you should. demos are a great way to get people to convert), but it's not freemium.
I think the best freemium model which with my previous comment would be to pick about 10 "dynamic" topics, along the lines of say todays current google trends http://www.google.com/trends/hottrends
which would give people enough of an indication of the utility of your site.
Why not limited the number of searches that someone can make, or limit the resolution of the photos they can download? That will get a lot of people in the habit of using site and then they might upgrade when they get annoyed by the free limitations.
Re limiting the number of searches - I'm concerned that people may just register throwaway accounts to get the free searches (and thus never paying). I could use cookies or IP smarts to counteract this, but it doesn't seem a good solution. I also don't want to make the sign up process harder.
Not sure if this comment adds any value (I really need to go to bed) but how about requesting an action before showing people the search results for the first time?
Kinda like http://www.tweetperview.com for searches.
Another way to monetize without a pay wall would be to use CPA ads, though some of them are scams...
Have you checked out http://sxc.hu yet? They have been online for a few years now and they monetize through iStockPhoto aff links.
I'd be sceptical if you could get many people to pay for it unless you found a good source of people who weren't very Internet savvy.
I think if your search engine is better at finding images compared to other sites, the best thing to do might be to let people search without logging in, but only show them a thumbnail, and to find out where the image comes from, they need to pay. However, you will still need to find a way to attribute images if the license terms require that.