Australian services marketplace start-up Airtasker today announced that it has acquired collaborative consumption business TaskBox, a company that also connects individuals and businesses seeking to outsource everyday tasks to reliable and trusted people who can complete those tasks. TaskBox Co-Founders James Mather and Nick Roberts will join Airtasker as Team Advisors and be responsible for business development and growth as the company continues to expand its peer-based outsourcing smartphone app and website.