I have a lot of respect for the operation Denny Dennis runs at the National Federation of Independent Businesses (NFIB).  Denny is in charge of the small business polls that NFIB releases eight times a year looking at small businesses (under 250 employees, I believe).  NFIB, and I believe Denny, have been doing these continually for more than twenty years.  In that time, they have covered a lot of questions which are interesting but would never get asked by most federal agencies.  And in the last year they have taken the very forward-looking step of making all those survey questions available in a searchable interface which brings back both interesting survey data but also puts it in an easy to read format: 411 Small Business Facts

One of their weekly emails highlighted a recent question which I thought would have a lot of interest in the current environment:

• Was one or more of the mortgages taken out on this property to provide capital for your business?
  Twenty-six (26) percent of small employers who own their residence and have a mortgage on that property had one or more of the mortgages taken out on this property to provide capital for their business (Q#18d). Eighteen (18) percent of small employers took out one or more mortgages on their residence to provide capital for their business (Q#18d).