The Democratic Society have written about how New York City has combined its digital PB tools with 'offline' practice as part of the city’s ongoing participatory budgeting work.
It's a great insight into the specific tools they used, as well as the importance of balancing the two methods to ensure good engagement in the process:
“Online platforms can make it easier for more people to take part in processes. The experience of New York shows that this needn’t mean sacrificing targeted offline activities. Instead offline and online can complement each other, with online platforms bringing people into forms of involvement that can make a real difference to the people who take part and the communities they live in.”
You can read more here.