As a startup how I drive customers to the site and engage with suppliers to join the site, and convince angels/Seed funders it's an idea worth investing.
I ran one of the top accelerators in the US for several years and I'd say 50% or more of the businesses that come through face this problem. I've seen a lot of patterns in this space and I could advise you if you are interested on what has worked for some of the businesses I have seen. The chicken and egg problem can be overcome with the right planning. I'd be happy to schedule a call with you.