Become a member at 
if you're passionate about housing & affordability there's some local groups like @grow_SF you could probably get involved with
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(i.e. places that put in place inclusive zoning & then went from low income to mixed income with minimal or no displacement)
The one everyone's talking about is Tokyo: http://www.vox.com/2016/8/8/12390048/san-francisco-housing-costs-tokyo …
