The spirt of this posting is good. Putting notices in a location where people will see them is important. The location need no longer be the single "newspaper of record". Facebook and twitter are two such locations.
You need to be careful when discussing this issue to clearly distinguish between notice and comment. While a notice can be in multiple locations comments must not. All comments have to be gathered by a central service. The service must allow commenting my many mechanisms -- online and offline. The service must have a means of attributing comments to constituents -- esp. at the local level. Anonymous comments are not allowed. Anonymity within the commenting system must be limited to voting on notices and on comments. But even here, while the vote is anonymously tallied the casting of a vote requires attribution.