Just some friendly feedback that I found it hard to discover what this service is all about. I hit the index page to get an overview, but it took clicking through to the Real Estate and Mobile sections to piece it together - I would normally not do that, but I was extra curious in this case. I think you might want to make some of the overview/intro content available on the index page.

Also the FAQ has a very prominent "How does HelloSign work?", but doesn't seem to answer that question. (ie: "HelloSign lets you upload your signature and quickly apply it to documents", or whatever it actually is)