The nature of work is changing pretty rapidly, thanks, in part, to the rise of the on-demand economy. Companies like Uber and Lyft have battled in court to keep their workers as independent contractors, a move that has not been without its controversies, given that the designation entitles those workers to fewer rights and benefits. One of the companies that has benefited most from that shift is freelance marketplace Upwork. It will list on on the Nasdaq Global Market under the ticker symbol UPWK, though the company declined to say how much it plans to raise in its offering. The company makes its money from two revenue streams. The first is its marketplace, where revenue is generated from its premium offerings, including Upwork Standard and Upwork Enterprise. With Upwork Standard, the company generates revenue from both freelancers and clients. For our Upwork Standard offering, we have a tiered freelancer service fee schedule based on cumulative lifetime billings by the freelancer to e...