Investigate alternative method to share bridges and Tor Browser bundles based on social network protocols
Tor is currently using bridgedb to distribute bridges to censored users. Bridgedb uses email distribution which is not very effective when facing a high efficient censor like the GFW.
Some papers  have suggested methods based on social networks. These work under the assumption that we can only limit the censor ability to block servers.
Similarly gettor is using various storage service to provide alternative links to download tor browser bundle when torproject.org website is blocked.
I suggest decentralization protocols like retroshare  could be an alternative solution to share bridges and tor browser bundles to trusted parties. Furthermore retroshare supports already a variety of services  that could be used to communicate with users that need help circumventing censorship.