I just watched Bidium's official video on YouTube and it somehow boggled me whether Bidium is an exchange or an auction or a sort of Hiring center ala LinkedIn? I mean, why facilitate 3 different industries under one platform? I'm a bit lost, really.
I think you need to read the whitepaper of Bidium in order for your confusion to be cleared. Bidium is a bidding marketplace for hiring freelance. It is bidding in a sense that the freelancer will sell their product and services through an auction. Simple platform but it really helps a lot for the clients to find a better work and outcomes that they want to be.
You can also read the whitepaper so you can understand more about the bidium. Bidium is a decentralized cryptocurrency exchange which combines power of advance auction with freelance hiring on top of blockchain technology. A bidding marketplace for buyers to purchase by bidding and a freelance platform to employers who are looking to hire a freelancers the exchange accepts bidm, bitcoin, ethereum, litecoin, and other coin. A short explanation about bidium, but hopefully will help you.