Op, you should update this thread as many of the programs are not live, some of the exchanges have even stopped. One program you can add is Facebook which also has bitcoin as one of the payment options now. Hackerone also this as one of the payment options so it applies to all programs listed there like Twitter, Uber and Yahoo.
I think we would need to do the legwork and find out which new bounties are open and update the current list.
I might have a look and start a new thread as this is very interesting to me for who has funds to dedicate to finding and resolving such issues.
Fuzzybear
