Volunteers gather or "scrape" data for PDAP, but we're running a 6-week data bounty generously sponsored by Dolt. The bounty pays people to gather traceable, approved data. Since we can focus effort by putting a price on specific data, we're able to get a massive head start on our Dataset Catalogue.
The current bounty will get us a list of URLs for thousands of police agencies on our Agencies and Datasets tables. Read more about it here.