My second station in Berlin after studiVZ was imedo, a smaller health platform with contry-wide doctor ratings from patients. It was the first time I did the frontend for a Ruby-on-Rails backend, but that's how I got in touch with SASS, which I still use today. There I also used the Faux Absolute Positioning technique for the first time, shortly after its release
I worked there partly as a permanent employee and partly as a freelancer. As a permanent employee I did the daily business (feature development), as a freelancer I made the platform more accessible. We even registered the platform at the BIENE Awards (which don't exist anymore), where an established jury annually awarded prizes for the best accessible websites. We were immediately nominated in the category "complex websites with user-generated content".
But our marketing department messed it up by filling the whole site with advertising, which of course was not in the least accessible, and so we only ended up in 4th place. This happend behind our backs while the jury was inspecting the site, so we couldn't prevent it.
But in this case, I woke up and realized for the first time how far commercial start-ups were from the original web doctrine, and today I stick to this opinion more than ever.