More than nine months since the rocky launch of the nation's public health insurance marketplaces, the state-level exchanges are still a work in progress. Collectively, more than 8 million people have signed up through the state marketplaces and the federal site, HealthCare.gov, since their inception, according to the Obama Administration's April tally. Initially, 14 states planned to implement their own insurance shopping sites. But one state-run exchange has shut down, shifting its workload to HealthCare.gov, and at least two others are keeping this option open.
