Until recently, largely for reasons of accountability, it has been near-impossible to create a workable neighborhood currency. But with the development of blockchain technology, the prospect of a workable currency is possible and, if Colu (see below) is to be believed, imminent.
In considering the pursuit of this opportunity other advantages that might be derived from using a blockchain should be considered, for example identity and voting.
Imagine if all of the users and contributors to JacksonHeights.nyc also had a direct, monetary interest in its success, one that reflected their own contributions as members. What impact would a local currency have on the neighborhood?
- As per Colu, 66% of traditional money spent in a local business stays in the neighborhood, compared to 30% when spent in a chain or multinational. 
- Voting on local issues might be more trustable.
- We'd be able to identify one another.
Decentralized platforms often launch half-baked and without clear use cases. As a result, they need to go through two phases of product-market fit:
- product-market fit between the platform and the developers/entrepreneurs who will finish the platform and build out the ecosystem, and
- product-market fit between the platform/ecosystem and end users. 
- Basic stories on how a neighborhood currency works - About of pre-digital trades in Arkansas
- Brooklyn Torch Project - How North Brooklyn is using a traditional neighborhood currency
- How To Start A Community Currency, October 2012. Good outline about using a traditional neighborhood currency sans digital.
- CNN - Doctors Accepting Local Currencies - February 2012
- Complimentary Currency Resource Center
- Power Grid in Brooklyn via Blockchain
- Blockchain is Neighborhood Currency's Missing Link
- Colu - Local currency / digital wallet provider with an operational project in Liverpool - Liverpool Pounds - that seems to have merit.
- Liverpool pound launches $2,000 Design Competition.
- FSB report reveals the power of small businesses in the local economy
- Local Multiplier 3 - UK analysis tool
- Small Business Saturday Statistics
- 1/2 hr audio on creating new economic and governance systems using incentives of ICOs.