ACS Data Biography - Important things to include?

We’re in the process of getting together some data biographies for some of the data sources we use a lot on our website, and we’re starting with the American Community Survey. It looks like Communities Count in King County has done one (Tailored Training).

  1. Does anyone know of other ACS data biographies we could potentially cite?
  2. Our community has a lot of concern about Census undercounts. Does anyone know how undercounts in the Deccenial Census impact the weighting of the ACS? (e.g. If people without documentation are undercounted in the Census, are they also underrepresented in the ACS, even after weighting?)
  3. I’m not familiar with the entropy weighting that was used for the 2020 ACS PUMS release. Is there anything important that we should share with members of our community about how that may have affected how representative the data is? (besides discouraging people from comparing across years)

Thanks for any help or ideas you can contribute!