Co-Working
Wikipedia defines Coworking is a style of work that involves a shared working environment, often an office, and independent activity.
Unlike in a typical office environment, those individuals that are coworking are usually not employed by the same organization.
Typically it is attractive to work-at-home professionals, independent contractors, or people who travel frequently who end up working in relative isolation.
Coworking is also the social gathering of a group of people who are still working independently, but who share values, and who are interested in the synergy that can happen from working with people who value working in the same place alongside each other.
For a small business, staffing resources can be found with remote workers that maybe to coworking.
Tools
Upwork - hire freelancers and find freelancing opportunities