It's no surprise Unbounce is near the top of this list -- they've actually written the book on creating high-converting landing pages. Although there are lots of amazing things about this landing page, the two that I absolutely love are: 1) The use of a chat window instead of a classic form, and 2) the detailed -- but well packaged -- information below the form.
Importantly, these higher premiums could only be charged for a period of one year to an individual who did not maintain continuous coverage. After an individual has maintained continuous coverage for twelve months they would then return to standard rates. This means that the protections against being charged higher premiums for a health condition are preserved for every individual market plan holder who maintains continuous coverage.