Welcome to the Factual Developer home. We think of our developer platform as two areas - the APIs and the advanced extraction tools - and we encourage you to explore both. For the APIs you'll need a key to get started; there's a link to the right for this. There is no key required for the extraction tools -- just go to those sections and begin exploring.
For those who are ready to start building, here's a sample app to get you thinking - www.eaterysearch.com. This is a search app that helps you sort through restaurants in the LA area based on multiple attributes. It leverages the data from a cool Factual Table that can be found here - http://www.factual.com/t/oOWlg9/LA_Restaurants_Health_Dept_Ratings.
There are a few things we want to be open about. We are very new, so don't look for SLAs - sorry. This is something we are looking into, but for now it's our best effort which we think is pretty good. We're not requiring any sort of Web service fees, but we can't guarantee that will always be the case. If you are interested in some form of partnership involving accessing the Factual API, contact us.
Hope you like what we've built. If you think it falls short of amazing - please tell us how to get there.