“Shareable economy” and “the new mutualism” are new and trendy terms for new-fashioned things like bikesharing programs, coworking, hacker spaces, etc. — and also names for old-fashioned things like public libraries, public parks, credit unions, co-ops, etc.
Two blogs on the shareable economy that seem worth reading:
Both blogs encourage social entrepreneurship. Both blogs look beyond North America to Europe, South America, Australia, and beyond. Not sure I’d read either blog on a regular basis, but both are worth looking at for ideas at least once.