Disclaimer: I'm a hardcore phantomjs user. Add a service that scrapes results and I think you'll be overwhelmed with interest. Scraping is a pain. It takes a special niche talent -- but a ton of people want it. Let people submit what information they want off a page -- you write the script that does it for them. Pay as you go, etc. If it saves people time, they will pay for it. I do full-time consulting -- building out software systems for people, but I could just as easily keep myself 100% busy just building phantom/casper scrapers for people that have no clue how to do it -- and I'm not talking about stuff that falls into the "be evil" bucket. You're just building web services where there are none.
Never head of ScraperWiki. Took a quick look, and it looks they do provide this kind of service. Regardless, that hardly means the market is saturated. Businesses need this kind of thing A LOT. If you do it right, it could prove quite fruitful. I'd remove all the stuff about phantomjs / headless browser and all tech jargon from the home page, and just focus on how you can provide fast value through this path.
