I've noticed that communities have been setting up their own blogs lately to keep residents informed of gatherings/happenings. I stumbled accross this website that maps out blogs on a neighborhood-by-neighborhood basis. The map centers on the LA area but click and scroll up to the Seattle region for a peek into your neighborhood. Sure looks like Matthew's Beach/Sand Point could use a local blog!
View So Cal groundwater issues summer 2008 in a larger map
Sorry to the folks that live in other places: It only covers SoCal and Seattle. :(