Some bounty campaigns used to be posted at bitcoingarden.org
I don't know how up-to-date it is, since Bitcointalk is still the main source.
Also some of the altcoins have their own forum or their reddit, but to get all that, you still have to come to Bitcointalk and read the ANN
I checked the bitcointalkgarden and seems like good to be one of a source but still bitcointalk is the best one. I don't know how up-to-date it is, since Bitcointalk is still the main source.
Also some of the altcoins have their own forum or their reddit, but to get all that, you still have to come to Bitcointalk and read the ANN
If you are trying to find something better than Bitcointalk you can stop searching and save your time. You won't find any. Bitcointalk is better than anything you can find.
The only close competitor could be Reddit, but the information there is too spread out and many useful things get buried because of the way Reddit works. So yeah, just stick with Bitcointalk and you're fine.