I have an idea that I think is good. I have set up a landing page, and I can go ahead and build the product whenever I want. However, it will also take significant manual labor by me to actually get running once the software is done. I have also run some Google Adwords, but they are expensive even with coupons and it's expensive to get a decent sample size.<p>What has worked for you in the past?
A claasic is the Dropbox video-MVP. It was a tough product to build, so they created a simple, direct video showing how it would work. A lot of people liked it, so they built the product. Google it for a better version of the stroy.<p>It is possible to make 2 cents Adwords. I am getting about 30 signups each day for about $5. I don't know if that is enough for me, but it is working for me to test some things.<p>And also, your landing page should be validating it for you, it isn't? The problem is just traffic for it?
Who do you think will buy your product? Go and talk to them. Its simple. You dont know who they are? Do some research around the web to find who uses similar products, and get in touch with these people through forums, email, tweets, etc.<p>Note that there is no hack around this. You have to go looking for people. End of story.
I'm reading PG's essays. He says you should make it because you want it, you're the target audience. The nos you get from funding and other people is a poor indicator of if an idea is good. Go for it.