Learned lots of good repair tips over the years. Went from being afraid to even open up my game to doing all my own board troubleshooting and work in about 5 years. Like the marketplace alot as well and general industry news/rumors/reveals.

FB groups are useful for this sort of thing too, but they are near impossible to search and don't archive well at all - alot of the threads on Pinside from many years ago helped me work out issues and avoid having to post at all. The "archive" of sorts is invaluable and you can't really find that anywhere else.

KLOV has a pinball section, but not even close to as active as Pinside.